native pdf reader strange behaviour

[francescotaioli]

trafficstars

Some parts of the application ( left bar and background ) disappear in the native pdf. Also is the only app ( so far ) that doesn't have the minimize, close and reduce button like osx

eOs Juno

[surajmandalcell]

This was a weird behavior i saw in some applications, i dont develop this anymore so if you have a fix please do leave a pr