as discussed before. A small feedback regarding the responsive stuff. Would it be possible to have the response part as a variable like the {{value}}, then in the format it would be easier to handle, Instead of doing a recalculation as mentioned here: link
This looks like a bug - it should work in the way you have suggested (but without the need for the {{device}}), so doing "format": "w-{{value}} h-{{value}}" in your properties.json should output something like: