If this is checked, EagleFiler will show rich text (i.e. HTML) representations of e-mail messages where available. The font will be the Rich text font specified in the Fonts settings. Levels of quoting will be indicated using the chosen Quoted Text Colors. Remote images will be displayed; attached images will not be. The display will adapt for Dark Mode, though in some cases this may be difficul to read depending on how the message was formatted. You can turn off Dark Mode for this view by clicking here.
See also: Message ‣ Plain Text and Message ‣ Use Quick Look.