Is anyone still using this TC and maybe found a solution for the following issue?
On 2.9.0.beta9 and beta10 the TC causes the system category meta to disappear from category dropdown field as well as topic list.
Forum log is empty, only thing in console log is:
[THEME 190 'Category Highlighter'] To prevent errors in tests, add a `pluginId` key to your `modifyClass` call. This will ensure the modification is only applied once. 3 plugin-api.js:19