KDE 应用程序图标未在 Ubuntu 中显示

Question

Ubuntu 中的 KDE 应用程序 (Okular) 中缺少某些图标。

这怎么能解决？

Opening okular from terminal shows:
android@android:~$ okular
Invalid Context= "Apps" line for icon theme:  "/snap/communitheme/current/share/icons/Suru/256x256@2x/apps/"
Invalid Context= "Mimetypes" line for icon theme:  "/snap/communitheme/current/share/icons/Suru/256x256@2x/mimetypes/"
Invalid Context= "Mimetypes" line for icon theme:  "/snap/communitheme/current/share/icons/Suru/scalable/mimetypes/"
Invalid Context= "Apps" line for icon theme:  "/snap/communitheme/current/share/icons/Suru/256x256@2x/apps/"
Invalid Context= "Mimetypes" line for icon theme:  "/snap/communitheme/current/share/icons/Suru/256x256@2x/mimetypes/"
Invalid Context= "Mimetypes" line for icon theme:  "/snap/communitheme/current/share/icons/Suru/scalable/mimetypes/"

Answer 1

首次安装qt5ct：

sudo apt install qt5ct

然后运行它并选择您喜欢的图标/主题：

最后设置QT_QPA_PLATFORMTHEME为：qt5ct.profile

echo 'export QT_QPA_PLATFORMTHEME=qt5ct' >> $HOME/.profile

重新登录，应该可以解决问题。