You will most often get bleedthrough, but how much really depends on your screen. You could look through the posts in the show your mirror section. Here you will be able to find some pictures where you can see the bleedthrough and decide for yourself if you can live with that :)
A New Chapter for MagicMirror: The Community Takes the Lead
Read the statement by Michael Teeuw here.
Read the statement by Michael Teeuw here.
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