Tweeki has some optional styling settings not found currently on ManageWiki. The following list are the ones I think it should be available:
- $wgTweekiSkinUseBootstrap4
- $wgTweekiSkinImagePageTOCTabs
- $wgTweekiSkinFooterIcons
- $wgTweekiSkinUseBtnParser
- $wgTweekiSkinUseTooltips
- $wgTweekiSkinUseIconWatch
All of the settings above are boolean (true or false). You can find a more detailed reference about them here, among other settings as well.