Certain keywords appear blue in code blocks. For example:
c dropFirst dropLast filter join map reduce reverse sort
In particular, these keywords appear light blue when viewing the forum with the light theme, and dark blue when viewing with the dark theme.
I think this is backwards. Text should be dark in the light theme, and light in the dark theme, to better contrast with the background.
The reason I bring this up is that under the dark theme, these dark blue keywords blend in with the gray code block background and can be difficult to read: