Hello everyone!  I've recently made a repaint of the avhistory Bf 109E-1 ("Red 13" of JG 26).  Using DXTBMP and Adobe Photo Deluxe I created a great XXXX_t.dds texture, but how do I go about creating the XXXX_s.dds texture?  Is it simply a black and white conversion of the "_t" texture, but darkened a bit, or is there more to it?

TIA!
Phillip