My uncle is visually impaired and I'm trying to adjust Ubuntu 18.04 for him. The theme 'HighContrastInverse' seems to suit him reasonably well, but instead of white letters and edges he prefers green. Is there anyone who knows where I can adjust this?

Here's a thread that might help

https://askubuntu.com/questions/6383...mes-in-gnome-3

Get an iMac or Mac Mini.

the magic mouse (has touch screen thing built into face instead of old wheel) can zoom in/out

even Windows 10 cannot do this (it is only partly implemented and broken, off the shelf)

you just press Apple and swipe finger and the whole desktop zooms in/out flawlessly. it's the only good choice for a truely visually impaired person especially elderly

that's not very good advice.

1. we're on a linux forum here
2. op specifically wrote "I'm trying to adjust Ubuntu 18.04 for him".

1 members found this post helpful.

The various themes are kept in /usr/share/themes. Each theme should have a series of css files (you should look in the theme's gtk-3.0 folder as most Ubuntu 18.04 applications should use Gtk3) through which you can change the theme attributes.

In order to avoid having to edit these css files as root (and have them revert any time the theme is updated), create a folder in your home directory using e.g.

(replacing theme_name with the name of the theme folder in /usr/share/themes).

Then create the css file in that directory that you want to change and populate it with:

(changing theme_name and css_filename.css accordingly).

Then you can add in any CSS rules after that (it's best to flag them as !important to ensure they are given priority).

You will probably have to reload a theme to put into effect any changes.

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