For example, if you plan to use a custom font family that uses serifs and a dark color palette, switch to Georgia and OmniFocus Dark. To begin creating your own custom style, it may be helpful to change your style settings to the size, general color palette (light or dark), and the font style that is closest to your desired end result. This article covers the basics of creating custom OmniFocus styles-but in general, this is an advanced feature that requires hand-editing text files and a good amount of patience our Support Humans won’t be able to help beyond what is already documented here. OmniFocus 2.5 for Mac introduced custom styles, allowing you to change between built-in Font Collections and Color Palettes, or import your own. This article does not apply to OmniFocus 3 for Mac, which replaced the system described here with a few simple options for customizing the app’s appearance.