It is fantastic that you are implementing rainbow brackets. I've installed daily build 1.4.714 and have the following feedback:
- While I love the rainbow, it actually isn't very functional to have the brackets change in rainbow order because adjacent brackets are similarly colored (it's hard to tell red from orange and orange from yellow). It would be better if the appeared in order of colors on opposite sides of the color wheel as those are the most distinct from each other, ie red, green, orange, blue, yellow, purple, etc:
- While the colors are helpful when there are nested brackets, they detract from legibility when they are needed for non-nested brackets. When there is no nesting, I'd suggest leaving them the default color of the theme.