Background changed default from white to black
OS: Windows 10 (10.0), Arch.: x86_64, MuseScore version (64-bit): 18.104.22.16807, revision: 38dab17
Open the attached score. (1) The canvas preferences should be default. But this nightly has rendered the background in a deep blue. (2) Also, if you inspect Preferences > Canvas, the settings for "Background" and "Paper are not default; they do not even match the actual settings in the document window. (3) In addition, the Canvas settings have been applied to the palette icons in error.