It has already been reported : https://github.com/NodeBB/nodebb-theme-persona/issues/204 It is related to skin usage.

@Mawi-Raura You can edit your own style from http://yourforum.com/admin/appearance/customise Or you can create your own themes and override as needed. Look here : https://docs.nodebb.org/vi/latest/themes/create.html

35hz.co.uk - Lavender with a custom light/dark theme switcher in the header next to the search button. That's about it. Edit: Need to fix the avatars,

@Mawi-Raura You shouldn't if you want the exact theme exodo uses. The widget's are drag-n-drop. But you probably will if you want a different/custom theme.