Hey @valentinewigs
Just throwing this out there - might not be an ideal solution and most likely you can somehow set up also fixed text to display dynamically, but for now, you could create those Metafields just as text with name included in value.
So instead of having value 5" you could set whole metafields value as Fringe: 5" thus you do not need to specify the name in theme and could only have the dynamic value show up which would also contain the name.