The Convert function can adjust the texture's colors to a target color. You can utilize it to tint a texture by setting all colors to the same hue (Image 2), homogenize the brightness (Image 4), making a texture monochrome (Image 3) and more.

The HSV color channels can be modified separately. For instance enable only the Hue checkbox to set all color to the same hue.
The target color is given by the Primary Color (left).