The launcher icon shape should use a distinct silhouette

The launcher icon shape should use a distinct silhouette

According to the Android Design Guide (https://material.io/design/iconography/) your launcher icons should "use a distinct silhouette", a "three-dimensional, front view, with a slight perspective as if viewed from above, so that users perceive some depth."

The unique silhouette implies that your launcher icon should not be a filled square.

Issue id: IconLauncherShape