Anyway, if there's no native way of putting colour back into the sidebar, I guess I'll have to live with it. I'd rather not tempt fate by adding an external utility to do it.
If you want to take a chance on a third-party app, consider XRevert. I haven't used it myself so I can't personally say anything else.
Jon
macOS 11.7.10, iMac Retina 5K 27-inch, late 2014, 3.5 GHz Intel Core i5, 1 TB fusion drive, 16 GB RAM, Epson SureColor P700, Photoshop CC, Lightroom CC, MS Office 365
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