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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: GtkAda callback and event
Date: Sat, 11 Sep 2021 17:56:02 +0200
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On 2021-09-11 17:24, DrPi wrote:

> Interesting.
> Any pointer on how to use CSS styles ?

This is GTK documentation of CSS:

    https://docs.gtk.org/gtk3/css-overview.html

Here is an example of a custom button that uses CSS for label, icon, 
tool tip etc.

 
http://www.dmitry-kazakov.de/ada/gtkada_contributions.htm#Gtk.Generic_Style_Button

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de