Everything Modifying a Texture Colour Swatch You can replace a texture colour swatch and all zones already painted with it will update. How to replace a texture swatch In the Colour view, select the texture swatch that contains the bitmap texture you want to replace. From the Colour View menu, select Colours > Edit Texture or double-click on the swatch. The Browser window opens. Browse for the new PSD or TGA bitmap file created in a third party software. Click Open to update the colour swatch.