Changes:
- Added getter for global style and current accent
- Added getter for a list of (available) trusted overlays
- Apps that want to change the global style now MUST specify their
package name when calling setGlobalStyle().
LineageParts will expose the name of the app that's currently managing
the global style
- Improved documentation
Change-Id: Iaa1b106f43684b4120aa0f39023ebfddcb379806
Signed-off-by: Joey <joey@lineageos.org>
5a72b57502