https://www.legacysurvey.org//viewer/?ra=221.2322&dec=1.9583&layer=ls-dr9&zoom=13
I’m trying to upload a background to it, but the maximum midsize is 4 MB this text will be blurred
Pretty sure you snuck into the develomental platform viewer 
Hi @Will81208.
Is there a reason you’re using the ‘dev’ version of the viewer? The dev version is a developmental/testing platform not designed for standard use. 
Cheers,
-CWT
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