emu48 now for android-OS

[Lode]

The previous version (before 14 march update I think) of the app had black background (or at least one that was not noticeable, which was good), now it's bright gray (there are now two thick bright gray borders left light and right on android, for all built in calculators/skins/kml files)

I liked it much better without the bright gray, is there a way to get rid of it again, for all built in ones? (preferably a global setting, no fiddling with all individual kml files an android please )