I am using the self illumination tool, have a “plexi” surface I want to show as lighted with a warm yellow tone. It is appearing far too bright yellow, I have tried lowering the illumination value, also changing the base color from warm yellow to orange and even as far as red. It is rendering the exact same color. I have resaved the file, closed and re opened, however it is still rendering at the same color value. Short of erasing the surface and starting again any thoughts?