Get actual screen size

I'm not sure if this is an actual issue, but I want to create a Game Window that matches my actual Android screen size. I haven't been able to retrieve the actual size in pixels of my screen.

No file, test, or entry point is named. Start by searching the KorGE documentation for Android screen-size and Game Window guidance, then verify whether an existing API covers the request. Done means documenting a confirmed way to obtain the actual pixel dimensions, or clearly stating the supported limitation.

Written by the indexing model from the issue text.