Step 1:Right click the desktop Step 2:Hit "new" then click "bitmap image" Step 3:Open the new bitmap file that you just made. Step 4:Double click on a color Step 5:Hit "define custom colors" Step 6:Make your designated color Step 7:Note how much red, green and blue is used   Step 8:Open "Final Sun" Step 9:Click on "edit" and move cursor to "ligthing" Step 10:Insert the red, blue and green numbers used for your selected color Step 11:Press "Enter" to save it to your map.