{"id":32972,"date":"2020-11-17T16:35:22","date_gmt":"2020-11-17T16:35:22","guid":{"rendered":"http:\/\/ubuntuhandbook.org\/?p=32972"},"modified":"2024-04-24T16:01:18","modified_gmt":"2024-04-24T16:01:18","slug":"change-qt5-apps-theme-look-native-ubuntu-20-04","status":"publish","type":"post","link":"https:\/\/ubuntuhandbook.org\/index.php\/2020\/11\/change-qt5-apps-theme-look-native-ubuntu-20-04\/","title":{"rendered":"Change Qt5 Apps Theme to Make Them Look Native in Ubuntu 20.04"},"content":{"rendered":"

\"\"<\/p>\n

Found that Qt5 based applications (e.g., VLC, qBittorrent, Virtualbox, Audacious, etc.) look ugly on Ubuntu Desktop? That’s because they don’t inherit the global GTK theme.<\/b><\/p>\n

You can apply a custom theme to Qt5 applications to make them look native on Ubuntu Gnome desktop. And Kvantum, an SVG-based theme engine, can do the job.<\/p>\n

First let’s see the change before and after applying the changes:<\/p>\n

\"\"<\/a><\/p>\n

\"\"<\/a><\/p>\n

And here’s step by step guide shows how to to this in Ubuntu 18.04, Ubuntu 20.04, Ubuntu 20.10.<\/p>\n

1.<\/b> First open terminal<\/code> (Ctrl+Alt+T) and run command to add the PPA:<\/p>\n

sudo add-apt-repository ppa:papirus\/papirus<\/pre>\n
This step is optional for Ubuntu 20.04<\/b> and higher, as the packages are already made into main repositories.<\/i><\/p>\n
\"\"<\/p>\n
2.<\/b> Install the qt5-style-kvantum<\/code> package by running command:<\/p>\n
sudo apt install qt5-style-kvantum<\/pre>\n
\"\"<\/p>\n
3.<\/b> Add rule to user’s profile, so the theme engine will handle Qt apps for single user.<\/p>\n
echo \"export QT_STYLE_OVERRIDE=kvantum\" >> ~\/.profile<\/pre>\n
For global, you can edit \/etc\/environment<\/code> file and add the line export QT_STYLE_OVERRIDE=kvantum<\/code> as new line in the end.<\/i><\/p>\n
\"\"<\/p>\n
4.<\/b> Log out and log back in<\/b>. Then launch Kvantum Manager<\/b> from system app menu.
\nNavigate to “Change\/Delete Theme”, then select and apply KvYaru<\/b> theme.<\/p>\n
\"\"<\/p>\n
Now Qt5 apps should look native if you’re running with default Yaru GTK theme.<\/p>\n
Uninstall and restore the changes:<\/h4>\n
To uninstall the PPA, open terminal and run command:<\/p>\n
sudo add-apt-repository --remove ppa:papirus\/papirus<\/pre>\n
To remove the theme engine, run command:<\/p>\n
sudo apt install qt5-style-kvantum qt5-style-kvantum-themes<\/pre>\n
And remember to edit ~\/.profile<\/code> to remove the last line<\/b>.<\/p>\n
gedit ~\/.profile<\/pre>\n
\"\"<\/p>","protected":false},"excerpt":{"rendered":"
Found that Qt5 based applications (e.g., VLC, qBittorrent, Virtualbox, Audacious, etc.) look ugly on Ubuntu Desktop? That’s because they don’t inherit the global GTK theme. You can apply a custom theme to Qt5 applications to make them look native on Ubuntu Gnome desktop. And Kvantum, an SVG-based theme engine, can do the job. First let’s […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[885],"class_list":["post-32972","post","type-post","status-publish","format-standard","hentry","category-howtos","tag-qt5"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/posts\/32972","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/comments?post=32972"}],"version-history":[{"count":0,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/posts\/32972\/revisions"}],"wp:attachment":[{"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/media?parent=32972"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/categories?post=32972"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/tags?post=32972"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}