All in one application - that is Easy Redmine
RTL Radio use Easy Redmine to maintain help desk, resources, attendance and of course all IT and software projects. We like the complexity - using all-in-one solution is just wonderful.
Easy Redmine theme is modified by plugin Custom Branding Designer.
There are GUI settings to change the main logo and basic coloring.
But it also allows to upload a custom CSS (for advanced users), which allows to manually override chosen default CSS elements by custom coded ones. Using custom CSS is only intended for users with experience in coding and is considered a custom modification - no guaranteed support from Easy Software can be provided.