The "Red Alert" color is currently hard-coded, which causes problems in themes. It also has an Enum value of 0, which precludes using this value as "unset". We also use Error, Warning, and Info colors that are part of the Info Editor. This PR moves these out of the Info Editor and into the "State" part of the theme. And then makes TH_REDALERT use the TH_ERROR color. Pull Request: https://projects.blender.org/blender/blender/pulls/131127