The other day, I was trying to make a save in which a moveable photon laser is shot through some FILT. However, I wanted to maintain the white colour of the photons, so I tried setting the ctype of the FILT to 1073741823 (2^30 - 1). However, the FILT stayed blue and turns any photons passing through blue.
Is there any reason for this, or is it a bug?