Claude Code and bold text.
I was working with Claude code and found it hard to read part of its responses as it was light gray, for example

It fixed this issue for me by adding instructions to itself not to use bold text in the claude.md file. (I have included the claude.md that it wrote (renamed to claude.txt) in case it helps.)
But then it went on to say -
The underlying bug is LINQPad's, not Claude's: xterm.js is substituting bright colours for bold. If you report it, drawBoldTextInBrightColors: false on the terminal instance is the one-line fix, and it would let you use bold and headings normally again — at which point the CLAUDE.md rule can be deleted.