color type param

[funwithtriangles]

This is merging into vector type (#477), so check that PR first. To do:

• Color Picker as dumb component, with local state for popping out
• Give picker a lil bit of chrome
• Getting a CORS error because of floating-ui. Functions fine, worth investigating what is actually trying to load... otherwise can fix by updating CORS rules
• tidy up color conversion: color-picker package exports funcs for this...
• Update example project to use colors and position for solids