Describe the bug
The dark theme needs to be refreshed after the updates to the light theme from 2.28.0. Dark theme colors are sometimes too dark to distinguish from the background.

To Reproduce
Steps to reproduce the behavior:

1. Go to https://drp.dataone.org/portals/drp-data
2. Look at layer list
3. See issue

Expected behavior
Theme colors should be readable.

Screenshots

Desktop (please complete the following information):

• OS: all
• Browser: all
• Version: all

Smartphone (please complete the following information):

• Device: all
• OS: all
• Browser: all
• Version: all

Additional context
n/a