Added in 2.4

/oline [-hr] <@name> <N|nick> <filename>

Changes the icon of the Nth Nicklist item.

Switches

-h - Highlights the window's button. (if window is not active)
-r - Reset an item in the listbox to default.

Parameters

<@name> - Custom window name.
<N|nick> - The Nth Nicklist item or matching nick to change icon for.
<filename> - Filename of the icon.

Example

alias example {
  ; Change the icon for 'Nick' to 'c:\Pictures\icon1.png'
  /oline Nick c:\Pictures\icon1.png
}