filt tmp?
setting filt color uses its ctype. find a good binary to decimal (and vice versa) converter, convert 536870912 to binary, edit it, and convert back. use the prop tool.
100000000000000000000000000001
Red - Orange - Yellow - Green - Blue
(the number i used converts to 536870913, and will appear purple)
(edit: also make sure to use the DECIMAL number when setting ctype, NOT binary)