Forgive me I am not very experienced. I see the lighting set-up is called the "Snapshot Icon", to me it looks like a lighting symbol. I followed May 6, 2021, Setting Up Photo Mechanic: Quickstart guide to Preferences.
https://home.camerabits.com/2021/05/06/setting-up-photo-mechanic-quickstart-guide-to-preferences/Attached.
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Match your colors
To make sure your Color Classes match up with the ones in Adobe Lightroom, it is vital that the actual names of the colors match. In Preferences > General, there is a preset “snapshot” that will change the colors in Photo Mechanic to match the ones in Lightroom.
Click the snapshot icon to get a list of presets for matching the colors in other software. (Note: Adobe Lightroom only uses 5 colors, so “Purple” will be duplicated a few times.)""