Hello lovely people!

I've added a few new things to customize the colours, plus some small things to help people making screenshots and videos.

New features:
1. New options to change tint hue colour and intensity. Reduce the intensity to zero to return to multi-colour.
2. New option to change background brightness.

Changes & improvements:
1. Removed option to mute music, you now change via music volume.
2. PC & Mac - New "U" key toggle, to hide cursor & UI completely (for screen capture e.g. videos/screenshots)
3. Can now draw over the top-right area without triggering the options menu to open

Hope you enjoy!

Cheers,
Chris aka Sonicfactory