Enum "BlendType"

Value	Enumerator	Comment
0	CONSTANT	{ 1, 0, 1, 0 }. Seems to be used to ignore any kind of source/destination modifiers
1	NORMAL	{ 1, 7, 1, 7}
2	ADDITIVE	{ 1, 1, 1, 1 }
3	MULTIPLICATIVE	{ 0, 2, 0, 2}
4	OVERLAY	{4, 7, 4, 7}