I just tried various combinations of PNG and SVG to try and correct this. PNG, I tried a bunch of sizes between 200px wide up to 4096px wide. They all looked blurry. :( Even though the file picker says that "SVG" can be uploaded, when you do it throws an error that the file type is unsupported. (Which is too bad, as SVG is the best-case scenario for crisp and good-looking logos).
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