Address additional PR comments

on_activate is likely to happen first so we shouldn't need to check the
other.

docs/dev/Lua API.rst

@@ -3757,6 +3757,12 @@ Misc
   Wraps ``dfhack.screen.getKeyDisplay`` in order to allow using strings for the keycode argument.
 
 
+* ``invert_color(color, bold)``
+
+  This inverts the brightness of ``color``. If this color is coming from a pen's
+  foreground color, include ``pen.bold`` in ``bold`` for this to work properly.
+
+
 ViewRect class
 --------------
 

library/lua/gui/widgets.lua

@@ -1461,7 +1461,7 @@ end
 
 function HotkeyLabel:shouldHover()
     -- When on_activate is set, text should also hover on mouseover
-    return HotkeyLabel.super.shouldHover(self) or self.on_activate
+    return self.on_activate or HotkeyLabel.super.shouldHover(self)
 end
 
 function HotkeyLabel:initializeLabel()