Some extraneous code was discovered in the style XML file, so it had to be removed. I use AH's Discord add-on and apparently it injected some code from the add-on into the style. No other changes were made. As far as I know, the extraneous code will not affect the performance of the style, but if you feel uncomfortable with it in the code, you can simply delete your current version of Shades of Grey style and import the new "clean" version, v2.1.7