Back to the sign posted in the OP.
It doesn't appear to be a conforming sign.
From the Texas Alcoholic Beverage Commission website:
Weapons Warning Sign - If alcohol sales constitute less than half of gross receipts, the required sign says: "It is unlawful to carry a weapon on the premises unless the person is licensed to carry the weapon under the concealed handgun law." If alcohol sales constitute more than half of gross receipts, the signs have 51% in large red letters superimposed over the warning which notes that possession of a concealed weapon on the premises is a felony.