STEPS TO REPRODUCE
- Log in as Admin
- Create a new page
- On the new page, click on More Actions > Administer Page > Look & Feel > Themes
- Change Icon Theme to 'Silk'
- Observe the icons in the wiki
All icons are changed to 'Silk'.
The icons from Applications panel are not changed. I have force refreshed (CTRL+F5) the page, cleared the cache, but still no change. Reproduced on Firefox 64, Chrome 71, Edge 17, IE11.