The ef-themes are a collection of light and dark themes for GNU Emacs that provide colourful (“pretty”) yet legible options for users who want something with a bit more flair than the modus-themes (also designed by me). [ Note that the “deuteranopia” and “tritanopia” themes define all colours in the palette to be consistent with the overall project, but only use hues that are appropriate for red-green and blue-yellow colour deficiency, respectively. ] All of its faces will now look consistent in context as they get the appropriate colours of the active Ef theme.