fix(osx installer): Fix blurred background image
fix(osx installer): Fix blurred background image

Changelog-entry: Fix blurred background image
Change-type: patch
Signed-off-by: Robert Vojta <12e9293ec6b30c7fa8a0926af42807e929c1684f@balena.io>

resin-io/resin-etcher,resin-io/etcher,resin-io/etcher,resin-io/etcher,resin-io/etcher,resin-io/resin-etcher,resin-io/herostratus,resin-io/etcher,resin-io/herostratus