This is good to know. I never use the light colour schemes and no one has reported issues with it as far as I’m aware.
I noticed something when I changed the
Panel property in the theme editor. The actual text in the Places pane seemed to be shaded slightly darker, or dimmed, or something, compared to the other locations that used the same setting. I wonder if it’s an errant css rule doing something special with just the Places pane (or maybe all panes). Is the Places pane the only place you’ve noticed the light theme have poor contrast?