Fix unit tests failing.
# Conflicts: # osu-framework
Update the background according to the currently selected beatmap and…
No big optimizations yet, but groundwork is laid out.
Add simple implementation of HitExplosions.
Update framework.
Various improvements
Use gradient helper function to create toolbar tooltip gradient.
Fix option checkbox losing its glow incorrectly in certain cases.
General fixes
Add an implementation of the new design of checkboxes.