launcher3: Handle themed icons for preload icon delegate.

The progresscolor, plateColor, and trackColor are all intentionally different for themed
icons. The seed must be the same as the colors utilized by the themed icons, which is encapsulated
as materialColorInverseSurface, which maps to colorSurfaceInverse, etc.

Bug: 442628969
Flag: EXEMPT bug fix
Test: manual verification

Change-Id: Id1138693cd6166ee3334217a49e01e6753b4b9bb
1 file changed