Suggest using red color (and blinking if possible) to improve indicator visibility

Hm... I quite like the clean look of the icon... but I also see your point... let's see what I can do.
This should be an optional feature though if implemented, the appearing grey icon in combination with the red-turning toolbar icon is all the visibility I need, having a red and even blinking icon in the adress bar would be too distracting for my taste.
I will make this some settings. The range will go from no color changes at all - just display of the page action - to both icons blinking.
The badge for the toolbar icon is a good idea - I could use A, B and C for the label: A(udio), B(oth) and C(anvas) ;)
@Thorin-Oakenpants: can you please create a new issue for the badge?
@kkapsner The new badges look fantastic! I've noticed so far only one minor "issue" (http://www.bilder-upload.eu/upload/4e4eea-1535409086.jpg); is it possible to insert a gap between "CanvasBlocker" and "Schutz/Protection", so they're not attached together when displayed in the tool collection menu?
I will add a space there.
Most helpful comment
This should be an optional feature though if implemented, the appearing grey icon in combination with the red-turning toolbar icon is all the visibility I need, having a red and even blinking icon in the adress bar would be too distracting for my taste.