The standard TCR roundel consists of a stylized white Texas with a red line representing the railway. The state is represented by a neutral color, while the rail line line is red, representing speed and vitality. The Symbolism Wiki informs us that dark red is associated with vigor, leadership, and willpower; all appropriate connotations for a 220mph train. A blue background ties the logo into the Texas state flag.
By contrast, the opposition renders Texas in the same dark red, and uses dark blue to represent the rail line. The color palette remains identical, and one can be forgiven for not noticing the difference. But the symbolism is clear: Texas is a red state, and the rail line is a blue interloper.
This ought not to be the case; HSR’s core ridership base is the professional classes, and a privately-financed train could be seen as by and for the capitalists. But tribal boundaries don’t always hew precisely to economic ideology.
I’ve previously argued that cultural bias against the other tribe’s preferred transport is often unconscious. But here, it’s pretty overt.