diff --git a/pkg/balance/numbers.go b/pkg/balance/numbers.go
index d99aa97..3013d59 100644
--- a/pkg/balance/numbers.go
+++ b/pkg/balance/numbers.go
@@ -7,7 +7,7 @@ var (
 	Height = 768
 
 	// Speed to scroll a canvas with arrow keys in Edit Mode.
-	CanvasScrollSpeed int32 = 8
+	CanvasScrollSpeed = 8
 
 	// Window scrolling behavior in Play Mode.
 	ScrollboxHoz      = 256 // horizontal px from window border to start scrol
diff --git a/pkg/balance/shell.go b/pkg/balance/shell.go
index 836e893..1e9b3b4 100644
--- a/pkg/balance/shell.go
+++ b/pkg/balance/shell.go
@@ -8,7 +8,7 @@ var (
 	ShellBackgroundColor         = render.RGBA(0, 20, 40, 200)
 	ShellForegroundColor         = render.RGBA(0, 153, 255, 255)
 	ShellPromptColor             = render.White
-	ShellPadding          int32  = 8
+	ShellPadding                 = 8
 	ShellFontSize                = 16
 	ShellFontSizeSmall           = 10
 	ShellCursorBlinkRate  uint64 = 20
diff --git a/pkg/collision/collide_actors.go b/pkg/collision/collide_actors.go
index a0f452f..90bc369 100644
--- a/pkg/collision/collide_actors.go
+++ b/pkg/collision/collide_actors.go
@@ -102,11 +102,11 @@ The returned CollisionBox uses absolute coordinates in the same space
 as the passed-in rects.
 */
 func Overlap(a, b render.Rect) CollisionBox {
-	max := func(x, y int32) int32 {
-		return int32(math.Max(float64(x), float64(y)))
+	max := func(x, y int) int {
+		return int(math.Max(float64(x), float64(y)))
 	}
-	min := func(x, y int32) int32 {
-		return int32(math.Min(float64(x), float64(y)))
+	min := func(x, y int) int {
+		return int(math.Min(float64(x), float64(y)))
 	}
 
 	var (
diff --git a/pkg/collision/collide_level.go b/pkg/collision/collide_level.go
index b5e97e5..cf818df 100644
--- a/pkg/collision/collide_level.go
+++ b/pkg/collision/collide_level.go
@@ -3,9 +3,9 @@ package collision
 import (
 	"sync"
 
-	"git.kirsle.net/go/render"
 	"git.kirsle.net/apps/doodle/pkg/doodads"
 	"git.kirsle.net/apps/doodle/pkg/level"
+	"git.kirsle.net/go/render"
 )
 
 // Collide describes how a collision occurred.
@@ -61,13 +61,13 @@ func CollidesWithGrid(d doodads.Actor, grid *level.Chunker, target render.Point)
 		result = &Collide{
 			MoveTo: P,
 		}
-		ceiling   bool  // Has hit a ceiling?
-		capHeight int32 // Stop vertical movement thru a ceiling
-		capLeft   int32 // Stop movement thru a wall
-		capRight  int32
-		capFloor  int32 // Stop movement thru the floor
-		hitLeft   bool  // Has hit an obstacle on the left
-		hitRight  bool  // or right
+		ceiling   bool // Has hit a ceiling?
+		capHeight int  // Stop vertical movement thru a ceiling
+		capLeft   int  // Stop movement thru a wall
+		capRight  int
+		capFloor  int  // Stop movement thru the floor
+		hitLeft   bool // Has hit an obstacle on the left
+		hitRight  bool // or right
 		hitFloor  bool
 	)
 
diff --git a/pkg/collision/level_test.go b/pkg/collision/level_test.go
index 499ac95..6553b8c 100644
--- a/pkg/collision/level_test.go
+++ b/pkg/collision/level_test.go
@@ -4,10 +4,10 @@ import (
 	"fmt"
 	"testing"
 
-	"git.kirsle.net/go/render"
 	"git.kirsle.net/apps/doodle/pkg/collision"
 	"git.kirsle.net/apps/doodle/pkg/doodads/dummy"
 	"git.kirsle.net/apps/doodle/pkg/level"
+	"git.kirsle.net/go/render"
 )
 
 func TestCollisionFunctions(t *testing.T) {
@@ -21,12 +21,12 @@ func TestCollisionFunctions(t *testing.T) {
 
 	// with a solid platform at y=500 and x=0..1000
 	for i := 0; i < 1000; i++ {
-		grid.Set(render.NewPoint(int32(i), 500), solid)
+		grid.Set(render.NewPoint(i, 500), solid)
 	}
 
 	// and a short wall in the middle of the platform
 	for i := 480; i < 500; i++ {
-		grid.Set(render.NewPoint(500, int32(i)), solid)
+		grid.Set(render.NewPoint(500, i), solid)
 	}
 
 	// Make a dummy player character.
diff --git a/pkg/doodads/doodad.go b/pkg/doodads/doodad.go
index c9fe3ed..28a6469 100644
--- a/pkg/doodads/doodad.go
+++ b/pkg/doodads/doodad.go
@@ -1,9 +1,9 @@
 package doodads
 
 import (
-	"git.kirsle.net/go/render"
 	"git.kirsle.net/apps/doodle/pkg/balance"
 	"git.kirsle.net/apps/doodle/pkg/level"
+	"git.kirsle.net/go/render"
 )
 
 // Doodad is a reusable component for Levels that have scripts and graphics.
@@ -53,8 +53,8 @@ func (d *Doodad) ChunkSize() int {
 func (d *Doodad) Rect() render.Rect {
 	var size = d.ChunkSize()
 	return render.Rect{
-		W: int32(size),
-		H: int32(size),
+		W: size,
+		H: size,
 	}
 }
 
diff --git a/pkg/doodads/dummy.go b/pkg/doodads/dummy.go
index d072565..0136448 100644
--- a/pkg/doodads/dummy.go
+++ b/pkg/doodads/dummy.go
@@ -1,8 +1,8 @@
 package doodads
 
 import (
-	"git.kirsle.net/go/render"
 	"git.kirsle.net/apps/doodle/pkg/level"
+	"git.kirsle.net/go/render"
 )
 
 // NewDummy creates a placeholder dummy doodad with a giant "X" across it.
@@ -16,8 +16,8 @@ func NewDummy(size int) *Doodad {
 	dummy.Palette.Swatches = []*level.Swatch{red}
 
 	for i := 0; i < size; i++ {
-		left := render.NewPoint(int32(i), int32(i))
-		right := render.NewPoint(int32(size-i), int32(i))
+		left := render.NewPoint(i, i)
+		right := render.NewPoint(size-i, i)
 
 		// Draw the stroke 2 pixels thick
 		dummy.Layers[0].Chunker.Set(left, red)
diff --git a/pkg/doodle.go b/pkg/doodle.go
index e8f1257..46cd030 100644
--- a/pkg/doodle.go
+++ b/pkg/doodle.go
@@ -114,7 +114,7 @@ func (d *Doodle) Run() error {
 		// Poll for events.
 		ev, err := d.Engine.Poll()
 		// log.Error("Button1 is: %+v", ev.Button1)
-		shmem.Cursor = render.NewPoint(int32(ev.CursorX), int32(ev.CursorY))
+		shmem.Cursor = render.NewPoint(ev.CursorX, ev.CursorY)
 		if err != nil {
 			log.Error("event poll error: %s", err)
 			d.running = false
diff --git a/pkg/drawtool/stroke.go b/pkg/drawtool/stroke.go
index 6fc9dfa..75350e8 100644
--- a/pkg/drawtool/stroke.go
+++ b/pkg/drawtool/stroke.go
@@ -111,10 +111,10 @@ func (s *Stroke) IterThickPoints() chan render.Rect {
 	go func() {
 		for pt := range s.IterPoints() {
 			ch <- render.Rect{
-				X: pt.X - int32(s.Thickness),
-				Y: pt.Y - int32(s.Thickness),
-				W: int32(s.Thickness) * 2,
-				H: int32(s.Thickness) * 2,
+				X: pt.X - s.Thickness,
+				Y: pt.Y - s.Thickness,
+				W: s.Thickness * 2,
+				H: s.Thickness * 2,
 			}
 		}
 		close(ch)
diff --git a/pkg/editor_scene.go b/pkg/editor_scene.go
index ce4affd..a91ed57 100644
--- a/pkg/editor_scene.go
+++ b/pkg/editor_scene.go
@@ -6,8 +6,6 @@ import (
 	"os"
 	"strings"
 
-	"git.kirsle.net/go/render"
-	"git.kirsle.net/go/render/event"
 	"git.kirsle.net/apps/doodle/pkg/balance"
 	"git.kirsle.net/apps/doodle/pkg/doodads"
 	"git.kirsle.net/apps/doodle/pkg/drawtool"
@@ -15,6 +13,8 @@ import (
 	"git.kirsle.net/apps/doodle/pkg/level"
 	"git.kirsle.net/apps/doodle/pkg/log"
 	"git.kirsle.net/apps/doodle/pkg/userdir"
+	"git.kirsle.net/go/render"
+	"git.kirsle.net/go/render/event"
 )
 
 // EditorScene manages the "Edit Level" game mode.
@@ -136,7 +136,7 @@ func (s *EditorScene) Setup(d *Doodle) error {
 		}
 
 		// TODO: move inside the UI. Just an approximate position for now.
-		s.UI.Canvas.Resize(render.NewRect(int32(s.DoodadSize), int32(s.DoodadSize)))
+		s.UI.Canvas.Resize(render.NewRect(s.DoodadSize, s.DoodadSize))
 		s.UI.Canvas.ScrollTo(render.Origin)
 		s.UI.Canvas.Scrollable = false
 		s.UI.Workspace.Compute(d.Engine)
diff --git a/pkg/editor_ui.go b/pkg/editor_ui.go
index b558760..8d65b62 100644
--- a/pkg/editor_ui.go
+++ b/pkg/editor_ui.go
@@ -5,9 +5,6 @@ import (
 	"path/filepath"
 	"strconv"
 
-	"git.kirsle.net/go/render"
-	"git.kirsle.net/go/render/event"
-	"git.kirsle.net/go/ui"
 	"git.kirsle.net/apps/doodle/pkg/balance"
 	"git.kirsle.net/apps/doodle/pkg/branding"
 	"git.kirsle.net/apps/doodle/pkg/drawtool"
@@ -15,10 +12,13 @@ import (
 	"git.kirsle.net/apps/doodle/pkg/level"
 	"git.kirsle.net/apps/doodle/pkg/log"
 	"git.kirsle.net/apps/doodle/pkg/uix"
+	"git.kirsle.net/go/render"
+	"git.kirsle.net/go/render/event"
+	"git.kirsle.net/go/ui"
 )
 
 // Width of the panel frame.
-var paletteWidth int32 = 160
+var paletteWidth = 160
 
 // EditorUI manages the user interface for the Editor Scene.
 type EditorUI struct {
@@ -52,7 +52,7 @@ type EditorUI struct {
 	doodadSkip       int
 	doodadRows       []*ui.Frame
 	doodadPager      *ui.Frame
-	doodadButtonSize int32
+	doodadButtonSize int
 	doodadScroller   *ui.Frame
 
 	// ToolBar window.
@@ -130,7 +130,7 @@ func (u *EditorUI) Resized(d *Doodle) {
 	// Menu Bar frame.
 	{
 		u.MenuBar.Configure(ui.Config{
-			Width:      int32(d.width),
+			Width:      d.width,
 			Background: render.Black,
 		})
 		u.MenuBar.Compute(d.Engine)
@@ -139,11 +139,11 @@ func (u *EditorUI) Resized(d *Doodle) {
 	// Status Bar.
 	{
 		u.StatusBar.Configure(ui.Config{
-			Width: int32(d.width),
+			Width: d.width,
 		})
 		u.StatusBar.MoveTo(render.Point{
 			X: 0,
-			Y: int32(d.height) - u.StatusBar.Size().H,
+			Y: d.height - u.StatusBar.Size().H,
 		})
 		u.StatusBar.Compute(d.Engine)
 	}
@@ -152,10 +152,10 @@ func (u *EditorUI) Resized(d *Doodle) {
 	{
 		u.Palette.Configure(ui.Config{
 			Width:  paletteWidth,
-			Height: int32(u.d.height) - u.StatusBar.Size().H,
+			Height: u.d.height - u.StatusBar.Size().H,
 		})
 		u.Palette.MoveTo(render.NewPoint(
-			int32(u.d.width)-u.Palette.BoxSize().W,
+			u.d.width-u.Palette.BoxSize().W,
 			u.MenuBar.BoxSize().H,
 		))
 		u.Palette.Compute(d.Engine)
@@ -163,7 +163,7 @@ func (u *EditorUI) Resized(d *Doodle) {
 		u.scrollDoodadFrame(0)
 	}
 
-	var innerHeight = int32(u.d.height) - u.MenuBar.Size().H - u.StatusBar.Size().H
+	var innerHeight = u.d.height - u.MenuBar.Size().H - u.StatusBar.Size().H
 
 	// Tool Bar.
 	{
@@ -187,8 +187,8 @@ func (u *EditorUI) Resized(d *Doodle) {
 			u.MenuBar.Size().H,
 		))
 		frame.Resize(render.NewRect(
-			int32(d.width)-u.Palette.Size().W-u.ToolBar.Size().W,
-			int32(d.height)-u.MenuBar.Size().H-u.StatusBar.Size().H,
+			d.width-u.Palette.Size().W-u.ToolBar.Size().W,
+			d.height-u.MenuBar.Size().H-u.StatusBar.Size().H,
 		))
 		frame.Compute(d.Engine)
 
@@ -201,10 +201,10 @@ func (u *EditorUI) Resized(d *Doodle) {
 		btn.Compute(d.Engine)
 
 		var (
-			wsP           = u.Workspace.Point()
-			wsSize        = u.Workspace.Size()
-			btnSize       = btn.Size()
-			padding int32 = 8
+			wsP     = u.Workspace.Point()
+			wsSize  = u.Workspace.Size()
+			btnSize = btn.Size()
+			padding = 8
 		)
 		btn.MoveTo(render.NewPoint(
 			wsP.X+wsSize.W-btnSize.W-padding,
@@ -215,7 +215,7 @@ func (u *EditorUI) Resized(d *Doodle) {
 
 // Loop to process events and update the UI.
 func (u *EditorUI) Loop(ev *event.State) error {
-	u.cursor = render.NewPoint(int32(ev.CursorX), int32(ev.CursorY))
+	u.cursor = render.NewPoint(ev.CursorX, ev.CursorY)
 
 	// Loop the UI and see whether we're told to stop event propagation.
 	var stopPropagation bool
@@ -537,7 +537,7 @@ func (u *EditorUI) SetupStatusBar(d *Doodle) *ui.Frame {
 		BorderSize:  1,
 	}
 
-	var labelHeight int32
+	var labelHeight int
 	for _, variable := range u.StatusBoxes {
 		label := ui.NewLabel(ui.Label{
 			TextVariable: variable,
@@ -577,7 +577,7 @@ func (u *EditorUI) SetupStatusBar(d *Doodle) *ui.Frame {
 	// Set the initial good frame size to have the height secured,
 	// so when resizing the application window we can just adjust for width.
 	frame.Resize(render.Rect{
-		W: int32(d.width),
+		W: d.width,
 		H: labelHeight + frame.BoxThickness(1),
 	})
 	frame.Compute(d.Engine)
diff --git a/pkg/editor_ui_doodad.go b/pkg/editor_ui_doodad.go
index adee83a..2afb2d0 100644
--- a/pkg/editor_ui_doodad.go
+++ b/pkg/editor_ui_doodad.go
@@ -7,13 +7,13 @@ package doodle
 import (
 	"fmt"
 
-	"git.kirsle.net/go/render"
-	"git.kirsle.net/go/ui"
 	"git.kirsle.net/apps/doodle/pkg/balance"
 	"git.kirsle.net/apps/doodle/pkg/doodads"
 	"git.kirsle.net/apps/doodle/pkg/level"
 	"git.kirsle.net/apps/doodle/pkg/log"
 	"git.kirsle.net/apps/doodle/pkg/uix"
+	"git.kirsle.net/go/render"
+	"git.kirsle.net/go/ui"
 )
 
 // DraggableActor is a Doodad being dragged from the Doodad palette.
@@ -123,7 +123,7 @@ func (u *EditorUI) setupDoodadFrame(e render.Engine, window *ui.Window) (*ui.Fra
 		)
 	}
 
-	var buttonSize = (paletteWidth - window.BoxThickness(2)) / int32(perRow)
+	var buttonSize = (paletteWidth - window.BoxThickness(2)) / perRow
 	u.doodadButtonSize = buttonSize
 
 	// Load all the doodads, skip hidden ones.
@@ -218,8 +218,8 @@ func (u *EditorUI) scrollDoodadFrame(rows int) {
 
 	// Calculate about how many rows we can see given our current window size.
 	var (
-		maxVisibleHeight = int32(u.d.height - 86)
-		calculatedHeight int32
+		maxVisibleHeight = u.d.height - 86
+		calculatedHeight int
 		rowsBefore       int // count of rows hidden before
 		rowsVisible      int
 		rowsAfter        int                                     // count of rows hidden after
@@ -263,7 +263,7 @@ func (u *EditorUI) scrollDoodadFrame(rows int) {
 
 	var viewPercent = float64(rowsBefore+rowsVisible) / float64(len(u.doodadRows))
 	u.doodadScroller.Configure(ui.Config{
-		Width: int32(float64(paletteWidth-50) * viewPercent), // TODO: hacky magic number
+		Width: int(float64(paletteWidth-50) * viewPercent), // TODO: hacky magic number
 	})
 
 }
diff --git a/pkg/editor_ui_toolbar.go b/pkg/editor_ui_toolbar.go
index 41817c1..3061571 100644
--- a/pkg/editor_ui_toolbar.go
+++ b/pkg/editor_ui_toolbar.go
@@ -1,16 +1,16 @@
 package doodle
 
 import (
-	"git.kirsle.net/go/render"
-	"git.kirsle.net/go/ui"
 	"git.kirsle.net/apps/doodle/pkg/balance"
 	"git.kirsle.net/apps/doodle/pkg/drawtool"
 	"git.kirsle.net/apps/doodle/pkg/sprites"
+	"git.kirsle.net/go/render"
+	"git.kirsle.net/go/ui"
 )
 
 // Width of the toolbar frame.
-var toolbarWidth int32 = 44      // 38px button (32px sprite + borders) + padding
-var toolbarSpriteSize int32 = 32 // 32x32 sprites.
+var toolbarWidth = 44      // 38px button (32px sprite + borders) + padding
+var toolbarSpriteSize = 32 // 32x32 sprites.
 
 // SetupToolbar configures the UI for the Tools panel.
 func (u *EditorUI) SetupToolbar(d *Doodle) *ui.Frame {
@@ -137,7 +137,7 @@ func (u *EditorUI) SetupToolbar(d *Doodle) *ui.Frame {
 			image,
 		)
 
-		var btnSize int32 = btn.BoxThickness(2) + toolbarSpriteSize
+		var btnSize = btn.BoxThickness(2) + toolbarSpriteSize
 		btn.Resize(render.NewRect(btnSize, btnSize))
 
 		btn.Handle(ui.Click, func(p render.Point) {
diff --git a/pkg/fps.go b/pkg/fps.go
index 95d23fa..caf4f7a 100644
--- a/pkg/fps.go
+++ b/pkg/fps.go
@@ -4,11 +4,11 @@ import (
 	"fmt"
 	"strings"
 
-	"git.kirsle.net/go/render"
-	"git.kirsle.net/go/ui"
 	"git.kirsle.net/apps/doodle/pkg/balance"
 	"git.kirsle.net/apps/doodle/pkg/collision"
 	"git.kirsle.net/apps/doodle/pkg/doodads"
+	"git.kirsle.net/go/render"
+	"git.kirsle.net/go/ui"
 )
 
 // Frames to cache for FPS calculation.
@@ -20,11 +20,11 @@ var (
 	DebugOverlay   = false
 	DebugCollision = false
 
-	DebugTextPadding int32 = 8
-	DebugTextSize          = 24
-	DebugTextColor         = render.SkyBlue
-	DebugTextStroke        = render.Grey
-	DebugTextShadow        = render.Black
+	DebugTextPadding = 8
+	DebugTextSize    = 24
+	DebugTextColor   = render.SkyBlue
+	DebugTextStroke  = render.Grey
+	DebugTextShadow  = render.Black
 )
 
 var (
@@ -57,10 +57,10 @@ func (d *Doodle) DrawDebugOverlay() {
 	}
 
 	var (
-		darken        = balance.DebugStrokeDarken
-		Yoffset int32 = 20 // leave room for the menu bar
-		Xoffset int32 = 20
-		keys          = []string{
+		darken  = balance.DebugStrokeDarken
+		Yoffset = 20 // leave room for the menu bar
+		Xoffset = 20
+		keys    = []string{
 			"FPS:",
 			"Scene:",
 			"Mouse:",
diff --git a/pkg/guitest_scene.go b/pkg/guitest_scene.go
index 170e2eb..b7d9cc0 100644
--- a/pkg/guitest_scene.go
+++ b/pkg/guitest_scene.go
@@ -3,12 +3,12 @@ package doodle
 import (
 	"fmt"
 
-	"git.kirsle.net/go/render"
-	"git.kirsle.net/go/render/event"
-	"git.kirsle.net/go/ui"
 	"git.kirsle.net/apps/doodle/pkg/balance"
 	"git.kirsle.net/apps/doodle/pkg/branding"
 	"git.kirsle.net/apps/doodle/pkg/log"
+	"git.kirsle.net/go/render"
+	"git.kirsle.net/go/render/event"
+	"git.kirsle.net/go/ui"
 )
 
 // GUITestScene implements the main menu of Doodle.
@@ -269,14 +269,14 @@ func (s *GUITestScene) Draw(d *Doodle) error {
 	})
 	label.Compute(d.Engine)
 	label.MoveTo(render.Point{
-		X: (int32(d.width) / 2) - (label.Size().W / 2),
+		X: (d.width / 2) - (label.Size().W / 2),
 		Y: 40,
 	})
 	label.Present(d.Engine, label.Point())
 
 	s.Window.Compute(d.Engine)
 	s.Window.MoveTo(render.Point{
-		X: (int32(d.width) / 2) - (s.Window.Size().W / 2),
+		X: (d.width / 2) - (s.Window.Size().W / 2),
 		Y: 100,
 	})
 	s.Window.Present(d.Engine, s.Window.Point())
diff --git a/pkg/level/chunk.go b/pkg/level/chunk.go
index dcbcc1a..233c6a5 100644
--- a/pkg/level/chunk.go
+++ b/pkg/level/chunk.go
@@ -6,10 +6,10 @@ import (
 	"image"
 	"math"
 
-	"git.kirsle.net/go/render"
 	"git.kirsle.net/apps/doodle/pkg/balance"
 	"git.kirsle.net/apps/doodle/pkg/log"
 	"git.kirsle.net/apps/doodle/pkg/shmem"
+	"git.kirsle.net/go/render"
 	"github.com/google/uuid"
 	"github.com/vmihailenco/msgpack"
 )
@@ -153,8 +153,8 @@ func (c *Chunk) ToBitmap(filename string, mask render.Color) (render.Texturer, e
 	// Pixel coordinate offset to map the Chunk World Position to the
 	// smaller image boundaries.
 	pointOffset := render.Point{
-		X: int32(c.Point.X * int32(c.Size)),
-		Y: int32(c.Point.Y * int32(c.Size)),
+		X: c.Point.X * c.Size,
+		Y: c.Point.Y * c.Size,
 	}
 
 	// Blot all the pixels onto it.
@@ -169,8 +169,8 @@ func (c *Chunk) ToBitmap(filename string, mask render.Color) (render.Texturer, e
 			}
 		}
 		img.Set(
-			int(px.X-pointOffset.X),
-			int(px.Y-pointOffset.Y),
+			px.X-pointOffset.X,
+			px.Y-pointOffset.Y,
 			color.ToColor(),
 		)
 	}
@@ -229,8 +229,8 @@ func (c *Chunk) Rect() render.Rect {
 func (c *Chunk) SizePositive() render.Rect {
 	S := c.Rect()
 	return render.Rect{
-		W: int32(math.Abs(float64(S.X))) + S.W,
-		H: int32(math.Abs(float64(S.Y))) + S.H,
+		W: int(math.Abs(float64(S.X))) + S.W,
+		H: int(math.Abs(float64(S.Y))) + S.H,
 	}
 }
 
diff --git a/pkg/level/chunker.go b/pkg/level/chunker.go
index 96cecec..8f0648d 100644
--- a/pkg/level/chunker.go
+++ b/pkg/level/chunker.go
@@ -5,8 +5,8 @@ import (
 	"fmt"
 	"math"
 
-	"git.kirsle.net/go/render"
 	"git.kirsle.net/apps/doodle/pkg/log"
+	"git.kirsle.net/go/render"
 	"github.com/vmihailenco/msgpack"
 )
 
@@ -76,8 +76,8 @@ func (c *Chunker) IterViewportChunks(viewport render.Rect) <-chan render.Point {
 	go func() {
 		sent := make(map[render.Point]interface{})
 
-		for x := viewport.X; x < viewport.W; x += int32(c.Size / 4) {
-			for y := viewport.Y; y < viewport.H; y += int32(c.Size / 4) {
+		for x := viewport.X; x < viewport.W; x += (c.Size / 4) {
+			for y := viewport.Y; y < viewport.H; y += (c.Size / 4) {
 
 				// Constrain this chunksize step to a point within the bounds
 				// of the viewport. This can yield partial chunks on the edges
@@ -135,7 +135,7 @@ func (c *Chunker) WorldSize() render.Rect {
 	var (
 		chunkLowest  render.Point
 		chunkHighest render.Point
-		size         = int32(c.Size)
+		size         = c.Size
 	)
 
 	for coord := range c.Chunks {
@@ -169,8 +169,8 @@ func (c *Chunker) WorldSizePositive() render.Rect {
 	return render.Rect{
 		X: 0,
 		Y: 0,
-		W: int32(math.Abs(float64(S.X))) + S.W,
-		H: int32(math.Abs(float64(S.Y))) + S.H,
+		W: int(math.Abs(float64(S.X))) + S.W,
+		H: int(math.Abs(float64(S.Y))) + S.H,
 	}
 }
 
@@ -271,8 +271,8 @@ func (c *Chunker) ChunkCoordinate(abs render.Point) render.Point {
 
 	size := float64(c.Size)
 	return render.NewPoint(
-		int32(math.Floor(float64(abs.X)/size)),
-		int32(math.Floor(float64(abs.Y)/size)),
+		int(math.Floor(float64(abs.X)/size)),
+		int(math.Floor(float64(abs.Y)/size)),
 	)
 }
 
diff --git a/pkg/level/chunker_test.go b/pkg/level/chunker_test.go
index 0951664..58a18a7 100644
--- a/pkg/level/chunker_test.go
+++ b/pkg/level/chunker_test.go
@@ -4,8 +4,8 @@ import (
 	"fmt"
 	"testing"
 
-	"git.kirsle.net/go/render"
 	"git.kirsle.net/apps/doodle/pkg/level"
+	"git.kirsle.net/go/render"
 )
 
 func TestWorldSize(t *testing.T) {
@@ -86,8 +86,8 @@ func TestWorldSize(t *testing.T) {
 
 func TestViewportChunks(t *testing.T) {
 	// Initialize a 100 chunk image with 5x5 chunks.
-	var ChunkSize int32 = 100
-	var Offset int32 = 50
+	var ChunkSize int = 100
+	var Offset int = 50
 	c := level.NewChunker(int(ChunkSize))
 	sw := &level.Swatch{
 		Name:  "solid",
@@ -103,8 +103,8 @@ func TestViewportChunks(t *testing.T) {
 	// The chunk size is 100px so place a single pixel in each
 	// 100px quadrant.
 	fmt.Printf("size=%d  offset=%d\n", ChunkSize, Offset)
-	for x := int32(-2); x <= 2; x++ {
-		for y := int32(-2); y <= 2; y++ {
+	for x := -2; x <= 2; x++ {
+		for y := -2; y <= 2; y++ {
 			point := render.NewPoint(
 				x*ChunkSize+Offset,
 				y*ChunkSize+Offset,
diff --git a/pkg/level/types.go b/pkg/level/types.go
index f182ddb..6935aac 100644
--- a/pkg/level/types.go
+++ b/pkg/level/types.go
@@ -4,9 +4,9 @@ import (
 	"encoding/json"
 	"fmt"
 
-	"git.kirsle.net/go/render"
 	"git.kirsle.net/apps/doodle/pkg/balance"
 	"git.kirsle.net/apps/doodle/pkg/drawtool"
+	"git.kirsle.net/go/render"
 )
 
 // Useful variables.
@@ -73,9 +73,9 @@ func New() *Level {
 
 // Pixel associates a coordinate with a palette index.
 type Pixel struct {
-	X            int32 `json:"x"`
-	Y            int32 `json:"y"`
-	PaletteIndex int32 `json:"p"`
+	X            int `json:"x"`
+	Y            int `json:"y"`
+	PaletteIndex int `json:"p"`
 
 	// Private runtime values.
 	Swatch *Swatch `json:"-"` // pointer to its swatch, for when rendered.
@@ -103,7 +103,7 @@ func (p Pixel) MarshalJSON() ([]byte, error) {
 
 // UnmarshalJSON loads a Pixel from JSON again.
 func (p *Pixel) UnmarshalJSON(text []byte) error {
-	var triplet []int32
+	var triplet []int
 	err := json.Unmarshal(text, &triplet)
 	if err != nil {
 		return err
diff --git a/pkg/main_scene.go b/pkg/main_scene.go
index ab357d3..418ec17 100644
--- a/pkg/main_scene.go
+++ b/pkg/main_scene.go
@@ -1,15 +1,15 @@
 package doodle
 
 import (
-	"git.kirsle.net/go/render"
-	"git.kirsle.net/go/render/event"
-	"git.kirsle.net/go/ui"
 	"git.kirsle.net/apps/doodle/pkg/balance"
 	"git.kirsle.net/apps/doodle/pkg/branding"
 	"git.kirsle.net/apps/doodle/pkg/level"
 	"git.kirsle.net/apps/doodle/pkg/log"
 	"git.kirsle.net/apps/doodle/pkg/scripting"
 	"git.kirsle.net/apps/doodle/pkg/uix"
+	"git.kirsle.net/go/render"
+	"git.kirsle.net/go/render/event"
+	"git.kirsle.net/go/ui"
 )
 
 // MainScene implements the main menu of Doodle.
@@ -84,8 +84,8 @@ func (s *MainScene) SetupDemoLevel(d *Doodle) error {
 	s.canvas = uix.NewCanvas(100, false)
 	s.canvas.Scrollable = true
 	s.canvas.Resize(render.Rect{
-		W: int32(d.width),
-		H: int32(d.height),
+		W: d.width,
+		H: d.height,
 	})
 
 	s.scripting = scripting.NewSupervisor()
@@ -128,8 +128,8 @@ func (s *MainScene) Loop(d *Doodle, ev *event.State) error {
 		d.height = h
 		log.Info("Resized to %dx%d", d.width, d.height)
 		s.canvas.Resize(render.Rect{
-			W: int32(d.width),
-			H: int32(d.height),
+			W: d.width,
+			H: d.height,
 		})
 	}
 
@@ -147,8 +147,8 @@ func (s *MainScene) Draw(d *Doodle) error {
 	d.Engine.DrawBox(render.RGBA(255, 255, 254, 128), render.Rect{
 		X: 0,
 		Y: 0,
-		W: int32(d.width),
-		H: int32(d.height),
+		W: d.width,
+		H: d.height,
 	})
 
 	label := ui.NewLabel(ui.Label{
@@ -162,14 +162,14 @@ func (s *MainScene) Draw(d *Doodle) error {
 	})
 	label.Compute(d.Engine)
 	label.MoveTo(render.Point{
-		X: (int32(d.width) / 2) - (label.Size().W / 2),
+		X: (d.width / 2) - (label.Size().W / 2),
 		Y: 120,
 	})
 	label.Present(d.Engine, label.Point())
 
 	s.frame.Compute(d.Engine)
 	s.frame.MoveTo(render.Point{
-		X: (int32(d.width) / 2) - (s.frame.Size().W / 2),
+		X: (d.width / 2) - (s.frame.Size().W / 2),
 		Y: 260,
 	})
 	s.frame.Present(d.Engine, s.frame.Point())
diff --git a/pkg/menu_scene.go b/pkg/menu_scene.go
index c246b75..4d78c8e 100644
--- a/pkg/menu_scene.go
+++ b/pkg/menu_scene.go
@@ -3,15 +3,15 @@ package doodle
 import (
 	"fmt"
 
-	"git.kirsle.net/go/render"
-	"git.kirsle.net/go/render/event"
-	"git.kirsle.net/go/ui"
 	"git.kirsle.net/apps/doodle/pkg/balance"
 	"git.kirsle.net/apps/doodle/pkg/enum"
 	"git.kirsle.net/apps/doodle/pkg/level"
 	"git.kirsle.net/apps/doodle/pkg/log"
 	"git.kirsle.net/apps/doodle/pkg/uix"
 	"git.kirsle.net/apps/doodle/pkg/userdir"
+	"git.kirsle.net/go/render"
+	"git.kirsle.net/go/render/event"
+	"git.kirsle.net/go/ui"
 )
 
 /*
@@ -82,8 +82,8 @@ func (s *MenuScene) Setup(d *Doodle) error {
 	// Set up the background wallpaper canvas.
 	s.canvas = uix.NewCanvas(100, false)
 	s.canvas.Resize(render.Rect{
-		W: int32(d.width),
-		H: int32(d.height),
+		W: d.width,
+		H: d.height,
 	})
 	s.canvas.LoadLevel(d.Engine, &level.Level{
 		Chunker:   level.NewChunker(100),
@@ -127,8 +127,8 @@ func (s *MenuScene) setupNewWindow(d *Doodle) error {
 
 	window := ui.NewWindow("New Drawing")
 	window.Configure(ui.Config{
-		Width:      int32(float64(d.width) * 0.75),
-		Height:     int32(float64(d.height) * 0.75),
+		Width:      int(float64(d.width) * 0.75),
+		Height:     int(float64(d.height) * 0.75),
 		Background: render.Grey,
 	})
 	window.Compute(d.Engine)
@@ -324,8 +324,8 @@ func (s *MenuScene) setupNewWindow(d *Doodle) error {
 func (s *MenuScene) setupLoadWindow(d *Doodle) error {
 	window := ui.NewWindow("Open Drawing")
 	window.Configure(ui.Config{
-		Width:      int32(float64(d.width) * 0.75),
-		Height:     int32(float64(d.height) * 0.75),
+		Width:      int(float64(d.width) * 0.75),
+		Height:     int(float64(d.height) * 0.75),
 		Background: render.Grey,
 	})
 	window.Compute(d.Engine)
@@ -508,7 +508,7 @@ func (s *MenuScene) Draw(d *Doodle) error {
 
 	s.window.Compute(d.Engine)
 	s.window.MoveTo(render.Point{
-		X: (int32(d.width) / 2) - (s.window.Size().W / 2),
+		X: (d.width / 2) - (s.window.Size().W / 2),
 		Y: 60,
 	})
 	s.window.Present(d.Engine, s.window.Point())
diff --git a/pkg/play_scene.go b/pkg/play_scene.go
index b10cd6d..bcb6dc9 100644
--- a/pkg/play_scene.go
+++ b/pkg/play_scene.go
@@ -3,9 +3,6 @@ package doodle
 import (
 	"fmt"
 
-	"git.kirsle.net/go/render"
-	"git.kirsle.net/go/render/event"
-	"git.kirsle.net/go/ui"
 	"git.kirsle.net/apps/doodle/pkg/balance"
 	"git.kirsle.net/apps/doodle/pkg/collision"
 	"git.kirsle.net/apps/doodle/pkg/doodads"
@@ -13,6 +10,9 @@ import (
 	"git.kirsle.net/apps/doodle/pkg/log"
 	"git.kirsle.net/apps/doodle/pkg/scripting"
 	"git.kirsle.net/apps/doodle/pkg/uix"
+	"git.kirsle.net/go/render"
+	"git.kirsle.net/go/render/event"
+	"git.kirsle.net/go/ui"
 )
 
 // PlayScene manages the "Edit Level" game mode.
@@ -114,7 +114,7 @@ func (s *PlayScene) Setup(d *Doodle) error {
 	s.drawing = uix.NewCanvas(balance.ChunkSize, false)
 	s.drawing.Name = "play-canvas"
 	s.drawing.MoveTo(render.Origin)
-	s.drawing.Resize(render.NewRect(int32(d.width), int32(d.height)))
+	s.drawing.Resize(render.NewRect(d.width, d.height))
 	s.drawing.Compute(d.Engine)
 
 	// Handler when an actor touches water or fire.
@@ -305,7 +305,7 @@ func (s *PlayScene) DieByFire() {
 // Loop the editor scene.
 func (s *PlayScene) Loop(d *Doodle, ev *event.State) error {
 	// Update debug overlay values.
-	*s.debWorldIndex = s.drawing.WorldIndexAt(render.NewPoint(int32(ev.CursorX), int32(ev.CursorY))).String()
+	*s.debWorldIndex = s.drawing.WorldIndexAt(render.NewPoint(ev.CursorX, ev.CursorY)).String()
 	*s.debPosition = s.Player.Position().String() + " vel " + s.Player.Velocity().String()
 	*s.debViewport = s.drawing.Viewport().String()
 	*s.debScroll = s.drawing.Scroll.String()
@@ -318,7 +318,7 @@ func (s *PlayScene) Loop(d *Doodle, ev *event.State) error {
 		if w != d.width || h != d.height {
 			d.width = w
 			d.height = h
-			s.drawing.Resize(render.NewRect(int32(d.width), int32(d.height)))
+			s.drawing.Resize(render.NewRect(d.width, d.height))
 			return nil
 		}
 	}
@@ -358,9 +358,9 @@ func (s *PlayScene) Draw(d *Doodle) error {
 
 	// Draw the Edit button.
 	var (
-		canSize       = s.drawing.Size()
-		size          = s.editButton.Size()
-		padding int32 = 8
+		canSize = s.drawing.Size()
+		size    = s.editButton.Size()
+		padding = 8
 	)
 	s.editButton.Present(d.Engine, render.Point{
 		X: canSize.W - size.W - padding,
@@ -371,8 +371,8 @@ func (s *PlayScene) Draw(d *Doodle) error {
 	if !s.alertBox.Hidden() {
 		s.alertBox.Compute(d.Engine)
 		s.alertBox.MoveTo(render.Point{
-			X: int32(d.width/2) - (s.alertBox.Size().W / 2),
-			Y: int32(d.height/2) - (s.alertBox.Size().H / 2),
+			X: (d.width / 2) - (s.alertBox.Size().W / 2),
+			Y: (d.height / 2) - (s.alertBox.Size().H / 2),
 		})
 		s.alertBox.Present(d.Engine, s.alertBox.Point())
 	}
@@ -382,8 +382,7 @@ func (s *PlayScene) Draw(d *Doodle) error {
 
 // movePlayer updates the player's X,Y coordinate based on key pressed.
 func (s *PlayScene) movePlayer(ev *event.State) {
-	var playerSpeed = int32(balance.PlayerMaxVelocity)
-	// var gravity = int32(balance.Gravity)
+	var playerSpeed = balance.PlayerMaxVelocity
 
 	var velocity render.Point
 
diff --git a/pkg/shell.go b/pkg/shell.go
index caad4ad..b599e4b 100644
--- a/pkg/shell.go
+++ b/pkg/shell.go
@@ -5,12 +5,12 @@ import (
 	"fmt"
 	"strings"
 
-	"git.kirsle.net/go/render"
-	"git.kirsle.net/go/render/event"
-	"git.kirsle.net/go/ui"
 	"git.kirsle.net/apps/doodle/pkg/balance"
 	"git.kirsle.net/apps/doodle/pkg/log"
 	"git.kirsle.net/apps/doodle/pkg/shmem"
+	"git.kirsle.net/go/render"
+	"git.kirsle.net/go/render/event"
+	"git.kirsle.net/go/ui"
 	"github.com/robertkrimen/otto"
 )
 
@@ -278,21 +278,21 @@ func (s *Shell) Draw(d *Doodle, ev *event.State) error {
 		}
 
 		// How tall is the box?
-		boxHeight := int32(lineHeight*(balance.ShellHistoryLineCount+1)) + balance.ShellPadding
+		boxHeight := (lineHeight * (balance.ShellHistoryLineCount + 1)) + balance.ShellPadding
 
 		// Draw the background color.
 		d.Engine.DrawBox(
 			balance.ShellBackgroundColor,
 			render.Rect{
 				X: 0,
-				Y: int32(d.height) - boxHeight,
-				W: int32(d.width),
+				Y: d.height - boxHeight,
+				W: d.width,
 				H: boxHeight,
 			},
 		)
 
 		// Draw the recent commands.
-		outputY := int32(d.height - (lineHeight * 2))
+		outputY := d.height - (lineHeight * 2)
 		for i := 0; i < balance.ShellHistoryLineCount; i++ {
 			if len(s.Output) > i {
 				line := s.Output[len(s.Output)-1-i]
@@ -309,7 +309,7 @@ func (s *Shell) Draw(d *Doodle, ev *event.State) error {
 					},
 				)
 			}
-			outputY -= int32(lineHeight)
+			outputY -= lineHeight
 		}
 
 		// Draw the command prompt.
@@ -322,14 +322,14 @@ func (s *Shell) Draw(d *Doodle, ev *event.State) error {
 			},
 			render.Point{
 				X: balance.ShellPadding,
-				Y: int32(d.height-balance.ShellFontSize) - balance.ShellPadding,
+				Y: d.height - balance.ShellFontSize - balance.ShellPadding,
 			},
 		)
 	} else if len(s.Flashes) > 0 {
 		// Otherwise, just draw flashed messages.
 		valid := false // Did we actually draw any?
 
-		outputY := int32(d.height - (lineHeight * 2) - 16)
+		outputY := d.height - (lineHeight * 2) - 16
 		for i := len(s.Flashes); i > 0; i-- {
 			flash := s.Flashes[i-1]
 			if shmem.Tick >= flash.Expires {
@@ -349,7 +349,7 @@ func (s *Shell) Draw(d *Doodle, ev *event.State) error {
 					Y: outputY,
 				},
 			)
-			outputY -= int32(lineHeight)
+			outputY -= lineHeight
 			valid = true
 		}
 
diff --git a/pkg/uix/actor.go b/pkg/uix/actor.go
index d4aefad..23d56d4 100644
--- a/pkg/uix/actor.go
+++ b/pkg/uix/actor.go
@@ -4,9 +4,9 @@ import (
 	"errors"
 	"fmt"
 
-	"git.kirsle.net/go/render"
 	"git.kirsle.net/apps/doodle/pkg/doodads"
 	"git.kirsle.net/apps/doodle/pkg/level"
+	"git.kirsle.net/go/render"
 	"github.com/google/uuid"
 	"github.com/robertkrimen/otto"
 )
@@ -45,7 +45,7 @@ func NewActor(id string, levelActor *level.Actor, doodad *doodads.Doodad) *Actor
 		id = uuid.Must(uuid.NewRandom()).String()
 	}
 
-	size := int32(doodad.Layers[0].Chunker.Size)
+	size := doodad.Layers[0].Chunker.Size
 	can := NewCanvas(int(size), false)
 	can.Name = id
 
@@ -83,10 +83,10 @@ func (a *Actor) GetBoundingRect() render.Rect {
 // SetHitbox sets the actor's elected hitbox.
 func (a *Actor) SetHitbox(x, y, w, h int) {
 	a.hitbox = render.Rect{
-		X: int32(x),
-		Y: int32(y),
-		W: int32(w),
-		H: int32(h),
+		X: x,
+		Y: y,
+		W: w,
+		H: h,
 	}
 }
 
diff --git a/pkg/uix/actor_collision.go b/pkg/uix/actor_collision.go
index a4afc23..31c38d1 100644
--- a/pkg/uix/actor_collision.go
+++ b/pkg/uix/actor_collision.go
@@ -5,12 +5,12 @@ import (
 	"sync"
 	"time"
 
-	"git.kirsle.net/go/render"
 	"git.kirsle.net/apps/doodle/pkg/balance"
 	"git.kirsle.net/apps/doodle/pkg/collision"
 	"git.kirsle.net/apps/doodle/pkg/doodads"
 	"git.kirsle.net/apps/doodle/pkg/log"
 	"git.kirsle.net/apps/doodle/pkg/scripting"
+	"git.kirsle.net/go/render"
 	"github.com/robertkrimen/otto"
 )
 
@@ -59,7 +59,7 @@ func (w *Canvas) loopActorCollision() error {
 			// Get the actor's velocity to see if it's moving this tick.
 			v := a.Velocity()
 			if a.hasGravity {
-				v.Y += int32(balance.Gravity)
+				v.Y += balance.Gravity
 			}
 
 			// If not moving, grab the bounding box right now.
@@ -162,7 +162,7 @@ func (w *Canvas) loopActorCollision() error {
 					// he'd continue falling, so I had to move him up to stop it,
 					// turns out moving up by the -gravity is exactly the distance
 					// to go. Don't know why.
-					b.MoveBy(render.NewPoint(0, int32(-balance.Gravity)))
+					b.MoveBy(render.NewPoint(0, -balance.Gravity))
 				} else {
 					b.MoveTo(lastGoodBox.Point())
 				}
diff --git a/pkg/uix/canvas.go b/pkg/uix/canvas.go
index 21c022e..745c99f 100644
--- a/pkg/uix/canvas.go
+++ b/pkg/uix/canvas.go
@@ -6,9 +6,6 @@ import (
 	"runtime"
 	"strings"
 
-	"git.kirsle.net/go/render"
-	"git.kirsle.net/go/render/event"
-	"git.kirsle.net/go/ui"
 	"git.kirsle.net/apps/doodle/pkg/balance"
 	"git.kirsle.net/apps/doodle/pkg/bindata"
 	"git.kirsle.net/apps/doodle/pkg/collision"
@@ -18,6 +15,9 @@ import (
 	"git.kirsle.net/apps/doodle/pkg/log"
 	"git.kirsle.net/apps/doodle/pkg/scripting"
 	"git.kirsle.net/apps/doodle/pkg/wallpaper"
+	"git.kirsle.net/go/render"
+	"git.kirsle.net/go/render/event"
+	"git.kirsle.net/go/ui"
 )
 
 // Canvas is a custom ui.Widget that manages a single drawing.
@@ -225,7 +225,7 @@ func (w *Canvas) Loop(ev *event.State) error {
 
 	// If the canvas is editable, only care if it's over our space.
 	if w.Editable {
-		cursor := render.NewPoint(int32(ev.CursorX), int32(ev.CursorY))
+		cursor := render.NewPoint(ev.CursorX, ev.CursorY)
 		if cursor.Inside(ui.AbsoluteRect(w)) {
 			return w.loopEditable(ev)
 		}
diff --git a/pkg/uix/canvas_cursor.go b/pkg/uix/canvas_cursor.go
index 46d8c49..547b015 100644
--- a/pkg/uix/canvas_cursor.go
+++ b/pkg/uix/canvas_cursor.go
@@ -1,9 +1,9 @@
 package uix
 
 import (
+	"git.kirsle.net/apps/doodle/pkg/shmem"
 	"git.kirsle.net/go/render"
 	"git.kirsle.net/go/ui"
-	"git.kirsle.net/apps/doodle/pkg/shmem"
 )
 
 // IsCursorOver returns true if the mouse cursor is physically over top
@@ -33,7 +33,7 @@ func (w *Canvas) presentCursor(e render.Engine) {
 
 	// Are we editing with a thick brush?
 	if w.BrushSize > 0 {
-		var r = int32(w.BrushSize)
+		var r = w.BrushSize
 		rect := render.Rect{
 			X: shmem.Cursor.X - r,
 			Y: shmem.Cursor.Y - r,
diff --git a/pkg/uix/canvas_editable.go b/pkg/uix/canvas_editable.go
index abe3b7c..b345137 100644
--- a/pkg/uix/canvas_editable.go
+++ b/pkg/uix/canvas_editable.go
@@ -1,11 +1,11 @@
 package uix
 
 import (
+	"git.kirsle.net/apps/doodle/pkg/drawtool"
+	"git.kirsle.net/apps/doodle/pkg/level"
 	"git.kirsle.net/go/render"
 	"git.kirsle.net/go/render/event"
 	"git.kirsle.net/go/ui"
-	"git.kirsle.net/apps/doodle/pkg/drawtool"
-	"git.kirsle.net/apps/doodle/pkg/level"
 )
 
 // commitStroke is the common function that applies a stroke the user is
@@ -102,8 +102,8 @@ func (w *Canvas) loopEditable(ev *event.State) error {
 	var (
 		P      = ui.AbsolutePosition(w)
 		cursor = render.Point{
-			X: int32(ev.CursorX) - P.X - w.Scroll.X,
-			Y: int32(ev.CursorY) - P.Y - w.Scroll.Y,
+			X: ev.CursorX - P.X - w.Scroll.X,
+			Y: ev.CursorY - P.Y - w.Scroll.Y,
 		}
 	)
 
diff --git a/pkg/uix/canvas_present.go b/pkg/uix/canvas_present.go
index 3c4b2a7..5b5fc37 100644
--- a/pkg/uix/canvas_present.go
+++ b/pkg/uix/canvas_present.go
@@ -4,10 +4,10 @@ import (
 	"fmt"
 	"strings"
 
-	"git.kirsle.net/go/render"
-	"git.kirsle.net/go/ui"
 	"git.kirsle.net/apps/doodle/pkg/balance"
 	"git.kirsle.net/apps/doodle/pkg/log"
+	"git.kirsle.net/go/render"
+	"git.kirsle.net/go/ui"
 )
 
 // Present the canvas.
@@ -59,8 +59,8 @@ func (w *Canvas) Present(e render.Engine, p render.Point) {
 			}
 
 			dst := render.Rect{
-				X: p.X + w.Scroll.X + w.BoxThickness(1) + (coord.X * int32(chunk.Size)),
-				Y: p.Y + w.Scroll.Y + w.BoxThickness(1) + (coord.Y * int32(chunk.Size)),
+				X: p.X + w.Scroll.X + w.BoxThickness(1) + (coord.X * chunk.Size),
+				Y: p.Y + w.Scroll.Y + w.BoxThickness(1) + (coord.Y * chunk.Size),
 
 				// src.W and src.H will be AT MOST the full width and height of
 				// a Canvas widget. Subtract the scroll offset to keep it bounded
diff --git a/pkg/uix/canvas_scrolling.go b/pkg/uix/canvas_scrolling.go
index d5f9fdd..1e354c2 100644
--- a/pkg/uix/canvas_scrolling.go
+++ b/pkg/uix/canvas_scrolling.go
@@ -4,10 +4,10 @@ import (
 	"errors"
 	"fmt"
 
-	"git.kirsle.net/go/render"
-	"git.kirsle.net/go/render/event"
 	"git.kirsle.net/apps/doodle/pkg/balance"
 	"git.kirsle.net/apps/doodle/pkg/level"
+	"git.kirsle.net/go/render"
+	"git.kirsle.net/go/render/event"
 )
 
 /*
@@ -73,8 +73,8 @@ func (w *Canvas) loopConstrainScroll() error {
 		w.wallpaper.maxWidth+w.wallpaper.maxHeight > 0 {
 		var (
 			// TODO: downcast from int64!
-			mw       = int32(w.wallpaper.maxWidth)
-			mh       = int32(w.wallpaper.maxHeight)
+			mw       = int(w.wallpaper.maxWidth)
+			mh       = int(w.wallpaper.maxHeight)
 			Viewport = w.Viewport()
 		)
 		if Viewport.W > mw {
@@ -126,10 +126,10 @@ func (w *Canvas) loopFollowActor(ev *event.State) error {
 		)
 
 		// Scroll left
-		if APosition.X-VP.X <= int32(balance.ScrollboxHoz) {
+		if APosition.X-VP.X <= balance.ScrollboxHoz {
 			var delta = APosition.X - VP.X
-			if delta > int32(balance.ScrollMaxVelocity) {
-				delta = int32(balance.ScrollMaxVelocity)
+			if delta > balance.ScrollMaxVelocity {
+				delta = balance.ScrollMaxVelocity
 			}
 
 			if delta < 0 {
@@ -140,23 +140,23 @@ func (w *Canvas) loopFollowActor(ev *event.State) error {
 		}
 
 		// Scroll right
-		if APosition.X >= VP.W-ASize.W-int32(balance.ScrollboxHoz) {
-			var delta = VP.W - ASize.W - int32(balance.ScrollboxHoz)
-			if delta > int32(balance.ScrollMaxVelocity) {
-				delta = int32(balance.ScrollMaxVelocity)
+		if APosition.X >= VP.W-ASize.W-balance.ScrollboxHoz {
+			var delta = VP.W - ASize.W - balance.ScrollboxHoz
+			if delta > balance.ScrollMaxVelocity {
+				delta = balance.ScrollMaxVelocity
 			}
 			scrollBy.X = -delta
 		}
 
 		// Scroll up
-		if APosition.Y-VP.Y <= int32(balance.ScrollboxVert) {
+		if APosition.Y-VP.Y <= balance.ScrollboxVert {
 			var delta = APosition.Y - VP.Y
-			if delta > int32(balance.ScrollMaxVelocity) {
-				delta = int32(balance.ScrollMaxVelocity)
+			if delta > balance.ScrollMaxVelocity {
+				delta = balance.ScrollMaxVelocity
 			}
 
 			// TODO: add gravity to counteract jitters on scrolling vertically
-			scrollBy.Y -= int32(balance.Gravity)
+			scrollBy.Y -= balance.Gravity
 
 			if delta < 0 {
 				delta = -delta
@@ -165,15 +165,15 @@ func (w *Canvas) loopFollowActor(ev *event.State) error {
 		}
 
 		// Scroll down
-		if APosition.Y >= VP.H-ASize.H-int32(balance.ScrollboxVert) {
-			var delta = VP.H - ASize.H - int32(balance.ScrollboxVert)
-			if delta > int32(balance.ScrollMaxVelocity) {
-				delta = int32(balance.ScrollMaxVelocity)
+		if APosition.Y >= VP.H-ASize.H-balance.ScrollboxVert {
+			var delta = VP.H - ASize.H - balance.ScrollboxVert
+			if delta > balance.ScrollMaxVelocity {
+				delta = balance.ScrollMaxVelocity
 			}
 			scrollBy.Y = -delta
 
 			// TODO: add gravity to counteract jitters on scrolling vertically
-			scrollBy.Y += int32(balance.Gravity * 3)
+			scrollBy.Y += balance.Gravity * 3
 		}
 
 		if scrollBy != render.Origin {
diff --git a/pkg/uix/canvas_wallpaper.go b/pkg/uix/canvas_wallpaper.go
index e51b89b..dc59bb5 100644
--- a/pkg/uix/canvas_wallpaper.go
+++ b/pkg/uix/canvas_wallpaper.go
@@ -1,9 +1,9 @@
 package uix
 
 import (
-	"git.kirsle.net/go/render"
 	"git.kirsle.net/apps/doodle/pkg/level"
 	"git.kirsle.net/apps/doodle/pkg/wallpaper"
+	"git.kirsle.net/go/render"
 )
 
 // Wallpaper configures the wallpaper in a Canvas.
@@ -49,14 +49,14 @@ func (w *Canvas) loopContainActorsInsideLevel(a *Actor) {
 	if w.wallpaper.pageType >= level.Bounded {
 		if w.wallpaper.maxWidth > 0 {
 			if int64(orig.X+size.W) > w.wallpaper.maxWidth {
-				var delta = int32(w.wallpaper.maxWidth - int64(orig.X+size.W))
-				moveBy.X = delta
+				var delta = w.wallpaper.maxWidth - int64(orig.X+size.W)
+				moveBy.X = int(delta)
 			}
 		}
 		if w.wallpaper.maxHeight > 0 {
 			if int64(orig.Y+size.H) > w.wallpaper.maxHeight {
-				var delta = int32(w.wallpaper.maxHeight - int64(orig.Y+size.H))
-				moveBy.Y = delta
+				var delta = w.wallpaper.maxHeight - int64(orig.Y+size.H)
+				moveBy.Y = int(delta)
 			}
 		}
 	}
@@ -89,7 +89,7 @@ func (w *Canvas) PresentWallpaper(e render.Engine, p render.Point) error {
 	// For tiled textures, compute the offset amount. If we are scrolled away
 	// from the Origin (0,0) we find out by how far (subtract full tile sizes)
 	// and use the remainder as an offset for drawing the tiles.
-	var dx, dy int32
+	var dx, dy int
 	if origin.X > p.X {
 		for origin.X > p.X && origin.X > size.W {
 			origin.X -= size.W