Q: Remove grey background and turn it transparent ImageMagick does not replace '#c0c0c0' with a transparent background
I have tried magick convert img.png -fuzz 50% -transparent '#c0c0c0' 0.png and a convert option without "magick"
running version windows 10 x64 v7.0.8-14Q16 . 
A problem for later: using a bash script to convert 200 of these and it seems imagemagick also doesn't overwrite if output name is the same 
here is the image: https://i.imgur.com/JnNBtpX.png
No change...

A: Strangely it is just a problem with windows? Tried it on linux and it works fine.
