8 is NUM_CHANNELS. (magic constant)
Turn off the lower screen's backlight when returning from suspend during emulation.
Suspend on lid-close in the menu.
Reimplement Quicksort correctly for file selection screens. Before this commit, the emulator could sometimes give a file out of its order, for example an O* file between two S* files.
Assign a filter-related variable right after other filter-related variables.