diff --git a/engine/imageref.go b/engine/imageref.go
index e248a59..0e9980d 100644
--- a/engine/imageref.go
+++ b/engine/imageref.go
@@ -19,26 +19,24 @@ func init() {
 	gob.Register(ImageRef{})
 }
 
-// ImageRef loads images from the AssetFS into *ebiten.Image form.
-// It is your responsibility to import _ "image/..." for whatever
-// format the files are in, and to load it (either return it as a
-// subcomponent from Scan so that Game will Load it, or call Load
-// yourself).
+// ImageRef loads images from the AssetFS into *ebiten.Image form. It is your
+// responsibility to import _ "image/..." for whatever format the files are in,
+// and to load it (either return it as a subcomponent from Scan so that Game
+// will Load it, or call Load yourself).
 type ImageRef struct {
 	Path string
 
 	image *ebiten.Image
 }
 
-// Image returns the image, or nil if not loaded.
-// Multiple distinct ImageRefs can use the same path.
+// Image returns the image, or nil if not loaded. Multiple distinct ImageRefs
+// can use the same path efficiently.
 func (r *ImageRef) Image() *ebiten.Image {
 	return r.image
 }
 
-// Load loads the image. Load is required before Image returns.
-// Loading the same path multiple times uses a cache to return
-// the same image.
+// Load loads the image. Load is required before Image returns. Loading the same
+// path multiple times uses a cache to return the same image.
 func (r *ImageRef) Load(assets fs.FS) error {
 	// Fast path load from cache
 	r.image = imageCache[assetKey{assets, r.Path}]