Dithering for clocks, etc

That's really strange about the palette - I'd have thought Uint16Array would have automatically used a flat string in that case, but glad you got it sorted!

Then only the base64 encoded buffer is transformed to binary and copied to the watch. That seemed to be the only way to reference it from flash memory

Actually if you just use the base64 text with atob("...") then when uploaded from the app loader, the strings are 'pretokenised' by default and will be kept in flash (inside the JS file) without you having to worry!