I had a good week. Some images get better colour, and the software now deletes files more neatly.
ICC profiles
tl;dr: Some image colours are better now.
Some images come with an 'ICC profile'. A scan of one ICC-heavy client showed that 10% of all images had them. ICCs are basically colour correction data like 'actually, the blue should be this much more intensely blue than is stored' in a variety of sometimes complicated ways. Some nice cameras attach a fast ICC based on lighting conditions or known defects in the camera, and some image editing software does similar. ICCs are also used for broader and more complicated colour conversion tasks like in the migration from sRGB to HDR formats if you have a new tv/monitor.