Fixes #13860 !strict. Allow ${theme}, which will be expanded to the current theme name, in an icon path.
Fixes #13860 !strict. Allow ${theme}, which will be expanded to the current theme name, in an icon path.

git-svn-id: ee6e786acc44c9cca5ee17c71a5576c45c210361@26472 560b804f-0ae3-0310-86f3-f6aa0a117693

Sam-Cummins/delite,harbalk/delite,harbalk/delite,kitsonk/delite,kitsonk/delite,Sam-Cummins/delite