Hi Riko, I understand your valid concern.
Paint and color is fully planned and will be part of the very first (free) point update (5.1). I.e the very first thing we will focus on after the 5.0 release. We already have worked on these features, so we are about half way there by now.
The reason some of the development has taken a long time, is because we at some point (2 years ago) had to change programmers a few times, which delayed everything a lot. Now we are back up to full speed again, so no worries. My guesstimate is that we should be able to release 5.1 6 months after 5.0.
Thanks,
Niels