Fixed {IS_HERO} to prevent loss of hero ellipse when leveling up

changelog.md

@@ -15,6 +15,7 @@
  ### Miscellaneous and Bug Fixes
    * Fixed drake flare leadership animation over water (issue #3996)
    * Fixed animations not clearing properly when zoomed (issue #6589)
+   * Fixed the `{IS_HERO}` macro to avoid losing the hero ellipse when a unit levels up
 
 ## Version 1.16.5
  ### Miscellaneous and Bug Fixes

data/core/macros/image-utils.cfg

@@ -19,13 +19,16 @@
 ## so i'll leave it for now. since this icon is afaik not transparent though should not be a problem.
 #define IS_HERO
     # Embed this into a unit declaration to add a hero icon to the unit.
-    ellipse="misc/ellipse-hero"
     [+modifications]
         [object]
             [effect]
                 apply_to=overlay
                 add="misc/hero-icon.png"
             [/effect]
+            [effect]
+                apply_to=ellipse
+                ellipse="misc/ellipse-hero"
+            [/effect]
         [/object]
     [/modifications]
 #enddef