In addition to reinstalling all the defaced plugins, find the original backup of the defaced individual’s tiddlywiki file, or install what plugins, or is this a whole new problem
Any reply would be greatly appreciated
Maybe I don`t know what you want, but to “reverse uglification” may not be so easy, this would be a case of revert to backups or reinstall a plugin etc…
Uglified source can be “pretty-printed” as shown in your last image, but without the initial “source map” it cannot be restored easily.