GTK theme lost since update of LibreOffice to 5.2

[maximuscore]

In the Software Boutique I set LibreOffice to always use the latest available version.
After installing today's update of version 5.2 I noticed that the theming has reverted to the default, Windows 95-esque look instead of using the GTK Theme (Ambiant-MATE in my case).
Does anyone know how to restore the theming short of reverting to the stock Libreoffice that comes with Ubuntu MATE?

[jay]

If I'm not mistaken, libreoffice 5.2 changes the way it themes itself. Do you have the adwaita theme packages installed? Try installing gnome-themes-standard and gnome-themes-standard-data.

[maximuscore]

The adwaita-icon-theme package was installed already by default, I tried it with adwaita-icon-theme-full, gnome-themes-standard and gnome-themes-standard-data added, but it still does not work.

[IvCHo]

Try to start Libre Office with :

export SAL_USE_VCLPLUGIN=gtk  (Libre office command)

[maximuscore]

This unfortunately does not work either.

[maximuscore]

I found the missing package: libreoffice-gtk2. Installing that fixed the theme issue.

[DaveB]

Thanks @maximuscore for finding the solution!

In case helpful for those new to Ubuntu MATE

• Open a Terminal (Ctrl+Alt+T)
• Copy and paste the following into the Terminal window

sudo apt install libreoffice-gtk2

• Pressing Enter (keyboard) you'll be asked for your password (Tip: characters will not appear).

After installation completes, you may close the Terminal window.

[Atreju]

Thanks! Have had same issue! Now it's fixed!