That was fast, got my "missing" caps today! Thanks! I have a large bag of caps to play with and now have to find the perfect layout. Probably will try dying some of the caps red or orange. Currently looks like this:
Also, here is a white and ghost white comparison:
Indoors (yellow light, ghost right):
Outdoor (blue light, ghost right):
The color on both is about the same, but ghost white is slightly translucent and reflects less color so it looks noticeably more white under tinted light (not that clear in the picture). It also looks a bit unsharp or blurry, if that makes sense, compared to normal white. Kinda like watered milk. It may be just this one cap that I got, but the ghost white feels a little less gritty and slightly hollow to the touch, but I can only barely tell the difference in a blind test, so objectively the difference is almost non-existent. Great caps overall.