Orientation gizmo uses incorrect colors

Steps to reproduce:

1. Open the Preferences window, under Colors section
2. Change "Color axis" default color to some other color
3. Observe the Orientation gizmo

Actual results: All the negative axis and the label also change color

Expected results: Only the square at the center of the gizmo changes color

Reproducible with versions: 6000.7

Tested on (OS): Win11

Notes:

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