[Admins]

Interesting, didn't know of this problem. The problem seems to be that the colors are only sent if they are modified, but the default colors are different on clientside and serverside. I can change it to so that the npcserver is using the same default colors like the clientside. Until that is fixed you could theoretically modify one color to a different value and then set it back to the good value.
colors[5] is there as placeholder, on clientside you can use it for modifying the border color, but it is is not sent. If you modify it on serverside then it has no visible effect, but is making the npcserver send the colors.