I've just released the new colorset manager which is now available for use:

It's easy to use as usual - you just drag your colorsets onto this page. They'll then be processed which involves generating a preview for use in the interface and then downloading it to your server. You can then hit the apply button which will apply that colorset to your server for the next time you start it up. Let me know if you have any trouble in this thread.
If you've manually installed your own colorset the interface will show as you using the default colorset. If this bugs you, just upload your colorset via the interface and re-apply it there.
Unfortunately due to the scope of changes, all servers have had to be put into an 'outdated' state which means you'll need to restart your server at your earliest convenience to be able to make use of all the panel features. The good news is that I've also deployed some infrastructure changes that means that future updates won't require this 'outdated' state meaning I'll be able to roll out changes a lot more often and with no inconvenience to users.
I've added an additional 2 days to all active contracts just to apologise for the 'outdated' state that servers have had to be put in. While the server still works, I get that it's a real inconvenience to have to deal with. The changes I've made today should mean that updates can be seamlessly applied without interrupting your experience in the future.
Thanks!