Respect theme colors in app icons

[jgoedde]

Hey. It's a great project, I'm enjoying it a lot.

I was wondering if it is planned to support Android's themed (adaptive) icons within the pie.

https://developer.android.com/develop/ui/views/launch/icon_design_adaptive

So instead of the pie showing the pure app icons, it should use the themed variant of the icon provided by the operating system.