@Fifin404 no idea. I used the image as-is included in the MagicMirror project and just centred it as the background on Raspbian.
Maybe contact @MichMich, the author of MagicMirror to see if he can provide you with a better quality version of the image.
This forum was moved to another machine and updated to a recent version. If you are unable to login please delete your browser cookies and cache and restart your browser.A New Chapter for MagicMirror: The Community Takes the Lead
Read the statement by Michael Teeuw here.
Read the statement by Michael Teeuw here.