Emblems changes with differents resolutions

For example:

- emblem-foto is a nice "camera" only on 100% in nautilus. In 150%, 66%, 50% and 33% it's a grey bottom with a white camera-symbol.
- emblem-audio is a "note" in 400% till 150%. In 100% and less it's a grey bottom with symbol again.

etc etc

Here we need a decision how we want the emblems finally works (a symbol or a grey bottom). I like more the symbol-variant, because the symbol in the grey bottom is in a low-size-resolution very difficult to recognize. Than make all emblems to this style consistent!, please.