Ok, I know its more like a preference, but trust me using that keeps your eyes less strained as they would be if you used the Default Light theme.
Preferably use a font in Android Studio that's easy to read and is at a font size which does not forces you to strain your eyes. Also using fonts that support lingature increases readeablity. While everyone has a preferred font, below are some options for interested folks:
You should use a standard codestyle, so possible contenders can be