How to Fix LibreOffice Looks Awful in KDE Plasma, LXQt, Deepin - For those who use KDE Plasma, LXQt, Deepin Desktop Environment, or other QT-based desktop you'll find that LibreOffice (calc, draw, impress, writer, math, base) looks plain ugly like 90's desktop.

Here are the screenshots (FYI, I'm running LibreOffice 6.0) :

#1 Before

LibreOffice Qt5 and Plasma integration

Suggested read :

#2 After

LibreOffice Loks Ugly in KDE Desktop Fixed

LibreOffice Looks Ugly in QT Desktop

In order to integrate LibreOffice's interface with KDE, DDE, LXQt, you can install the gtk3 package. To do so :
  • Open terminal via app launcher or simply press Ctrl+Alt+T
  • Run the following command :

sudo apt-get install libreoffice-gtk3

  • Close and re-open LibreOffice
  • Now it should be much better

These were all to make LibreOffice UI better in KDE Plasma, LXQt, Deepin, or other QT-based desktop. Thanks for reading!.