Wikipedia:Manual of Style/Icons

The use of icons in Wikipedia encyclopedic project content – mainly lists, tables, infoboxes, and navboxes – can provide useful visual cues, but can also present a number of problems. Guidance on principal issues is summarized below, followed by more in-depth discussion of each.

For the purposes of this guideline, icons encompasses any small images – including logos, crests, coats of arms, seals, flags – or other decoration, whether produced by small image files, typographic dingbats, emojis, or CSS display manipulation.