findVisualFormat in juce_Linux_Windowing.cpp seems to have the following fallback strategy:
- 32bit (8 bit per channel, RGBA)
- 24bit (8 bit per channel, RGB)
- 16bit (???)
Is it possible to support 10 bit per channel (30bit RGB or 40bit RGBA) here? I am not very familiar with XRender/X.
