Issue Summary

This is reproducible on Data Center: yes

Steps to Reproduce

1. Navigate to a Draft pull request page
2. Using a slow 4G network and Dark theme
3. Refresh the page

Expected Results

There shouldn't be any flash on the draft banner

Actual Results

The Draft banner will flash from a bright blue to a darker blue

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available