* Always return image metrics exclusive of padding * Work with integer coordinates whenever possible * Eliminate redundant SpriteAtlasElement members * Fix asymmetric re-padding in getIconQuad when pixelRatio != 1 * Add explanatory comments
* Always return image metrics exclusive of padding * Work with integer coordinates whenever possible * Eliminate redundant SpriteAtlasElement members * Fix asymmetric re-padding in getIconQuad when pixelRatio != 1 * Add explanatory comments