Resource pack:"Programmer Art"cannot completely restore the button text color.

Before 1.15,activated button looks like this:(image 3)

After 1.15,the activated button's texture has been changed,from blue fill to white frame,and text from yellow to white(image 1).

But in"Programmer Art"resource pack,restoring textures should be 1.13,the activated button's texture restored,but text color are't restore(image 2).