Build Analysis: Low color contrast on "Success" label in "Build Analysis" window

Steps to reproduce:

1. Create a project
2. Unity Theme should be set to "Light"
3. Create one or a few builds for the project
4. Go to  Window → Analysis → Build Analysis 
5. Observe how the "Success" label is visible on the UI

Actual results: The label uses a light green text, resulting in poor visibility and low readability.

Expected results: The label should follow the Editor Design System standards for success states, ensuring a contrast ratio of at least 4.5:1 between the text and background.

Reproducible with versions: 6000.6.0a5

Can’t test with versions: 6000.6.0a4 has no needed new functionality

Tested on (OS): Tahoe 26.4.1

Notes: US-0209: Colors meet contract requirements in all UI themes