User-defined color of the axes names in V3d_View::TriedronDisplay() is ignored and some default light-gray color is used.
Reproducer in DRAW:
# internally calls V3dView->TriedronDisplay( Aspect_TOTP_LEFT_LOWER, Quantity_NOC_WHITE, 0.1, V3d_ZBUFFER );
In 6.3.x the axes names are correctly displayed in white while in 6.5.0 there is always a default color.
I could not quickly debug the issue - the initial color is correctly propagated into OpenGL structures but seems to get lost somewhere later.
Not a fundamental flaw but any regression is bad anyway :-|.
Hope this helps.