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[Dmitry Shachnev <mitya57@xxxxxxxxx>]

Hi Andrew!

In Qt 5.7, the GTK+ support was restructured:

* qt5-gtk-platformtheme contains GTK+ 3 platform theme *only* (i.e. native dialogs and icon theme).
* qt5-style-plugins contains GTK+ 2 platform theme *and* style.

So if you want the old GTK+ style, then the correct solution is install
qt5-style-plugins and export QT_QPA_PLATFORMTHEME=gtk2.

** Changed in: qtbase-opensource-src (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1695618

Title:
  Qt5 apps don’t pick up the GTK+ style anymore

Status in qtbase-opensource-src package in Ubuntu:
  Invalid

Bug description:
  Since I upgraded to Qt 5.7.1, Qt5 apps stopped picking up the Ubuntu
  (GTK+, I presume) theme, and look very Windowsy. I have qt5-gtk-
  platformtheme installed, and I tried forcing it by setting
  QT_QPA_PLATFORMTHEME, but to no avail.

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