There don't currently seem to be any configuration options for the colors used for icons. It looks like the colors used are set directly in the SVG code (screenshot).
Would we be able to either:
Update the hardcoded SVG icons to have default text color/bg color combos that meet accessibility min contrasts.
A simple UI config for icons to allow users to set their preferred background (and font/icon?) fill color for the SVGs.
It's also worth pointing out that the svg icons are hardcoded to use CSS variables if available (e.g. --color1) that are likely to have collisions because they are so generic. It would be better if these could be prefixed to avoid unintended collisions.