Change thresholds for unit tests to pass on high-dpi displays. Looks like it's the toDataURL() that is exporting at a lower resolution than the actual data, causing the effect.
Change thresholds for unit tests to pass on high-dpi displays. Looks like it's the toDataURL() that is exporting at a lower resolution than the actual data, causing the effect.

phetsims/scenery,phetsims/scenery,phetsims/scenery