I changed this to reuse colors across the light and dark themes, which brings helps preserve the intent of the original palettes and harmonizes the colors across modes.

It works for most birds and noted birds (known individual birds) along with some logic specifically for birds with default dark backgrounds.

From left to right: 
 - Light + Contrast
 - Light
 - Default
 - Default Alternate (because why not?)
 - Dark
 - Dark + Contrast

CSS refactor soon; need more granularity in custom properties.

#WIP

https://files.sfba.social/media_attachments/files/111/157/431/697/416/542/original/07a4a5faf9db255b.png