Terrible idea for color-blind people. And I don't even mean severely color-blind, like when you can't distiguish red from green at all, but something more common and less severe, like deuteranomaly - where it's shades of these colors that are hard to distinguish.
The color blind would still see the parenthesis at least like they see them currently without the color coding though, given they are distinguishable from the background by lightness.
Those people are able to distinguish suggested colors - the example is using primary colors. And at worst, it would be the same as all parenthesis being the same color (black).
most have an extension or setting to do this already!
Terrible idea for color-blind people. And I don't even mean severely color-blind, like when you can't distiguish red from green at all, but something more common and less severe, like deuteranomaly - where it's shades of these colors that are hard to distinguish.
The color blind would still see the parenthesis at least like they see them currently without the color coding though, given they are distinguishable from the background by lightness.
Those people are able to distinguish suggested colors - the example is using primary colors. And at worst, it would be the same as all parenthesis being the same color (black).