[ubuntu] How to increase font size, Ubuntu 18.04

Hi all,

Host - Ubuntu 16.04 gnome desktop
Guest - Ubuntu 18.04 gnome desktop
KVM

I have installed "Unity control center"

Unity control center -> Displays
Unknown display
(please see attached screenshot_unknown_display.png)

What shall I do? Install "gnome-tweaks" or "unity-tweak-tool" ?

Please advise. Thanks

Regards
satimis

Attached Images

• screenshot_unknown_display.jpg (44.6 KB)