The product pictures are arranged in the same order like the attributes, so first picture shows grey (DW), second one is red (DW), third picture shows Dorado (the dark one) and the last picture is Tahuna (the lighter one).
Basicaly all ILF limbs will fit this riser. Please mind that bow length and poundage is related to a 25" riser. So a limb with 66" and 20 lbs (on a 25" riser at 28" draw length) will result in a 60" bow with approximately 26 lbs when used on this riser (at 28" draw length).