Im currently coding my own GUI for my game and i want to highlight a texture (single texture, it could be, that one texture is transposed multiple times) if the mouse hovers the texture.

Does anyone has ideas of how to highlight a 2d element?

My idea was to add a bit of white (vec4(0.3, 0.3, 0.3, 1.0)) to the texture-Color when hovering the texture.
But this is not good, because all elements gets a bit more white

Thanks for any ideas