Do you mean that the word FloatTextField should have the same color of Mainform?
Mainform has that color because it's a Global Variable, declared in Process_Global.
So it can be called from any point of the code.
FloatTextField instead is a Local variable.
It will exist and can be used only inside that Sub.
I think that is correct to have them highlighted with different colors to understand the difference.
Hoping that this time I understood the question.

I agree that it could be nice to have local variable with some color different from white and different from Global variables.