diff --git a/popups/dialog.go b/popups/dialog.go
index e0fe839..4b8af60 100644
--- a/popups/dialog.go
+++ b/popups/dialog.go
@@ -49,7 +49,7 @@ func NewDialog (
 	case DialogKindError:    iconId = theme.IconError
 	}
 	
-	messageContainer.Adopt(basicElements.NewIcon(iconId, theme.IconSizeSmall), false)
+	messageContainer.Adopt(basicElements.NewIcon(iconId, theme.IconSizeLarge), false)
 	messageContainer.Adopt(basicElements.NewLabel(message, false), true)
 	container.Adopt(messageContainer, true)
 	
diff --git a/theme/assets/wintergreen-icons-large.png b/theme/assets/wintergreen-icons-large.png
new file mode 100644
index 0000000..ad1438f
Binary files /dev/null and b/theme/assets/wintergreen-icons-large.png differ
diff --git a/theme/assets/wintergreen-icons-small.png b/theme/assets/wintergreen-icons-small.png
index 972db16..ae4209a 100644
Binary files a/theme/assets/wintergreen-icons-small.png and b/theme/assets/wintergreen-icons-small.png differ
diff --git a/theme/default.go b/theme/default.go
index 8c25519..b59624c 100644
--- a/theme/default.go
+++ b/theme/default.go
@@ -19,6 +19,9 @@ var defaultTextures   [14][9]artist.Pattern
 //go:embed assets/wintergreen-icons-small.png
 var defaultIconsSmallAtlasBytes []byte
 var defaultIconsSmall [640]binaryIcon
+//go:embed assets/wintergreen-icons-large.png
+var defaultIconsLargeAtlasBytes []byte
+var defaultIconsLarge [640]binaryIcon
 
 func atlasCell (col, row int, border artist.Inset) {
 	bounds := image.Rect(0, 0, 16, 16).Add(image.Pt(col, row).Mul(16))
@@ -116,14 +119,34 @@ func init () {
 	// set up small icons
 	defaultIconsSmallAtlasImage, _, _ := image.Decode (
 		bytes.NewReader(defaultIconsSmallAtlasBytes))
-	bounds    := defaultIconsSmallAtlasImage.Bounds()
 	point     := image.Point { }
 	iconIndex := 0
-	for point.Y = bounds.Min.Y; point.Y < bounds.Max.Y; point.Y += 16 {
-	for point.X = bounds.Min.X; point.X < bounds.Max.X; point.X += 16 {
+	for point.Y = 0; point.Y < 20; point.Y ++ {
+	for point.X = 0; point.X < 32; point.X ++ {
 		defaultIconsSmall[iconIndex] = binaryIconFrom (
 			defaultIconsSmallAtlasImage,
-			image.Rect(0, 0, 16, 16).Add(point))
+			image.Rect(0, 0, 16, 16).Add(point.Mul(16)))
+		iconIndex ++
+	}}
+
+	// set up large icons
+	defaultIconsLargeAtlasImage, _, _ := image.Decode (
+		bytes.NewReader(defaultIconsLargeAtlasBytes))
+	point     = image.Point { }
+	iconIndex = 0
+	for point.Y = 0; point.Y < 8; point.Y ++ {
+	for point.X = 0; point.X < 32; point.X ++ {
+		defaultIconsLarge[iconIndex] = binaryIconFrom (
+			defaultIconsLargeAtlasImage,
+			image.Rect(0, 0, 32, 32).Add(point.Mul(32)))
+		iconIndex ++
+	}}
+	iconIndex = 384
+	for point.Y = 8; point.Y < 12; point.Y ++ {
+	for point.X = 0; point.X < 32; point.X ++ {
+		defaultIconsLarge[iconIndex] = binaryIconFrom (
+			defaultIconsLargeAtlasImage,
+			image.Rect(0, 0, 32, 32).Add(point.Mul(32)))
 		iconIndex ++
 	}}
 }
@@ -148,8 +171,11 @@ func (Default) FontFace (style FontStyle, size FontSize, c Case) font.Face {
 // Icon returns an icon from the default set corresponding to the given name.
 func (Default) Icon (id Icon, size IconSize, c Case) artist.Icon {
 	if size == IconSizeLarge {
-		// TODO
-		return nil
+		if id < 0 || int(id) >= len(defaultIconsLarge) {
+			return nil
+		} else {
+			return defaultIconsLarge[id]
+		}
 	} else {
 		if id < 0 || int(id) >= len(defaultIconsSmall) {
 			return nil
diff --git a/xcf/large.xcf b/xcf/large.xcf
index e2d7f3d..ff64f0f 100644
Binary files a/xcf/large.xcf and b/xcf/large.xcf differ