checkbox color appears different with the curve color

Issue description

In the Scalars dashboard, the colored square checkboxes in the left‑hand run/tag list appear to have different color with the corresponding curves in the main chart. Only happens on dark red and light red curves.

See the below picture. We have: dark red checkbox -> light red curve light red checkbox -> dark red curve I suppose the reverse way would look better?

I noticed that the color inside the checkbox is different with its border color. But its border color (and the circle select box on the right) seems correct. Is this behavior expected?

Other colors like blue and green seems not have this problem.

Environment information (required)

tensorboard=2.20.0 installed by pip install tensorflow is not installed Google Chrome=140.0.7339.185