Theming has been a core component of Invision Community since its inception, and this continues with Invision Community 5, but in a very different way. If you haven't already seen Ehren's blog on the new Theme Editor, please do take the time to watch it. The all-new theme editor reduces the complexity of theming by taking complex concepts like HSL CSS variables into a pretty slick UI that almost any Invision Community owner can use to personalise or brand match to any existing properties.