Add "View template modifications" when viewing a template with template modifications that apply.
A powerful diagnostic tool when diagnosing add-on conflicts in production!
Lists all modifications that are applying, and allows on-the-fly which are applying or not to view different permutations.
Allows viewing compiled template code various template modifications, extremely useful for isolating exactly where in a highly modified template is actually causing errors.
Note; viewing compiled template code dynamically compiles the selected template & modifications and does not read the actual on-disk representation.
If xdebug is active, this can be very slow!
When the installer is renaming things (phrases/options/etc), disable development file output as it can cause unexpected upgrade failures when the board is in dev mode