- if you use custom bbcodes and would like to have icon,
- or if your browser do not show custom bbcode buttons correctly:
upload 24x24 pixels gif image with same name of custom bbcode to images/bbcodes folder. for example for a custom bbcode with this name: youtube, upload youtube.gif to images/bbcodes folder.
if you see scrambled toolbar button for custom bbcodes you can also disable help tips from acp to fix that but I recommend to add icon for all bbcodes for best result.