DescriptionWML
From The Battle for Wesnoth Wiki
A description is a part of the value of a menu attribute. It is used to represent a single option in the menu which consists of an image(called the icon) followed by text.
A description has the format
== ";"+ == if another description precedes it
== "*"+ == if it should be the default selection
Contents
"&"+"image//"+"="+//texts main description; different texts separated by +
for example:
difficulty_descriptions="&" + "elvish-fighter.png" + "=" + _"Fighter" + _"(easiest)" + ";*" + "&" + "elvish-hero.png" + "=" + _"Hero" + ";" + "&" + "elvish-champion.png" + _"Champion" + _"(hardest)"
The utility macros(see UtilWML)
{MENU_IMG_TXT icon text}
{MENU_IMG_TXT2 icon text text-2}
can be used to create descriptions more easily. The above example would become:
difficulty_descriptions={MENU_IMG_TXT2 "elvish-fighter.png" _"Fighter" _"(easiest)"} + ";*" + {MENU_IMG_TXT "elvish-hero.png" _"Hero"} + ";" + {MENU_IMG_TXT2 "elvish-champion.png" _"Champion" _"(hardest)"}