uxrandr is a user interface for xrandrdedicated to color management on Linux/X.Org. It is an easy way to adjust the colors of your screens and visually calibrate them.
This is still an Alpha version, which means there’s still a lot of development remaining, but it is already considered "usable". i.e. you can already use it without breaking the sun, even if some (a lot of) features are still missing and there's still some (a lot of) bugs. It is not ready for use in production.
Rainbox is actively developping a lot of tools for Blender. We’re collected the ones which can already be tested in this add-on, which will ultimately become Duik for Blender, and maybe some other more official add-ons.
This is still a Beta version, which means there’s still some development remaining, but it is already considered "usable". i.e. you can already use it without breaking the sun, there may still be some bugs. You may use it in production at your own risk.