SSplotRunsTest extreme residual plotting bug

When plotting runs test results for multiple fleets, the legend for extreme residuals is red for only the first plot. It should be red for every plot.
See example below:

<img width="806" height="684" alt="Image" src="https://github.com/user-attachments/assets/59a79d04-9fe3-4ea1-8f26-bde75aca6d26" />