One test that was recently made was to match the sun position with a photograph. Sun Position offers geographical positioning of the sun. Sun Position T69936 Now maintained by Picard (pioverfour) this is another longstanding contrib addon.I think we could however merge them into 1 import palette addon rather than the 2 current entries. I do remember also we had a gimp palette importer at one stage. Import Palettes T71549 T71548 by Vazquez (antoniov) These addons cover importing color palettes from krita, photoshop/illustrator.There's no good reason to keep this in contrib.
Rock Generator maintained by Spivak (cwolf3d) No task for this yet, Rock Generator has been a longstanding contrib addon, very popular and the question is asked or comment made "Why is this not in release?".
Addons project would provide the new collections manager as a replacement for the older layer manager.
The consultation and design between Inch (Imaginer) and Kotelevets (1D_Inc) has been working towards a robust solution for collections. This in turn spawned other addons and concepts.