I think that I cannot use `${static.url('images/pathways_detail_01.png')}` inside the `*.yaml` templates ([zooming_diagrams.yaml](https://github.com/edx/edx-platform/blob/ae24ae0c63975081254a066e93df853c7437ef1b/common/lib/xmodule/xmodule/templates/html/zooming_diagrams.yaml)). 
They all use hardcoding static paths now.