docs: add docs for GtkIconSize

diff --git a/gtk/gtkenums.h b/gtk/gtkenums.h
index 120f022200a50820fdf6329657736cc3d545e6e3..cc202bc0cc9ec88f4bbeeb7797d29e31f05bd6ab 100644 (file)
--- a/gtk/gtkenums.h
+++ b/gtk/gtkenums.h
@@ -250,7 +250,18 @@ typedef enum
   GTK_EXPANDER_EXPANDED
 } GtkExpanderStyle;
 
-/* Built-in stock icon sizes */
+/**
+ * GtkIconSize:
+ * @GTK_ICON_SIZE_INVALID: Invalid size.
+ * @GTK_ICON_SIZE_MENU: Size appropriate for menus (16px).
+ * @GTK_ICON_SIZE_SMALL_TOOLBAR: Size appropriate for small toolbars (18px).
+ * @GTK_ICON_SIZE_LARGE_TOOLBAR: Size appropriate for large toolbars (24px)
+ * @GTK_ICON_SIZE_BUTTON: Size appropriate for buttons (20px)
+ * @GTK_ICON_SIZE_DND: Size appropriate for drag and drop (32px)
+ * @GTK_ICON_SIZE_DIALOG: Size appropriate for dialogs (48px)
+ *
+ * Built-in stock icon sizes.
+ */
 typedef enum
 {
   GTK_ICON_SIZE_INVALID,