comparison gtk-3.20/README @ 24:1b8713fff1e1

Add initial GTK3.20 support ready for upgrade to openSUSE Leap 42.2
author IBBoard <dev@ibboard.co.uk>
date Tue, 22 Nov 2016 20:58:58 +0000
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1 Summary
2 -------
3
4 * Do not edit the CSS directly, edit the source SCSS files and process them with SASS (run
5 `./parse-sass.sh` when you have the required software installed, as described below)
6 * To be able to use the latest/adequate version of sass, install ruby, gem, sass & bundle.
7 On Fedora F20, this is done with `sudo dnf install rubygems && gem install bundle && bundle install`
8 from the same directory this README resides in.
9
10 How to tweak the theme
11 ----------------------
12
13 Adwaita is a complex theme, so to keep it maintainable it's written and processed in SASS. The
14 generated CSS is then transformed into a gresource file during gtk build and used at runtime in a
15 non-legible or editable form.
16
17 It is very likely your change will happen in the _common.scss file. That's where all the widget
18 selectors are defined. Here's a rundown of the "supporting" stylesheets, that are unlikely to be the
19 right place for a drive by stylesheet fix:
20
21 _colors.scss - global color definitions. We keep the number of defined colors to a necessary minimum,
22 most colors are derived form a handful of basics. It covers both the light variant and
23 the dark variant.
24
25 _colors-public.scss - SCSS colors exported through gtk to allow for 3rd party apps color mixing.
26
27 _drawing.scss - drawing helper mixings/functions to allow easier definition of widget drawing under
28 specific context. This is why Adwaita isn't 15000 LOC.
29
30 _common.scss - actual definitions of style for each widget. This is where you are likely to add/remove
31 your changes.
32
33 You can read about SASS at http://sass-lang.com/documentation/. Once you make your changes to the
34 _common.scss file, you can either run the ./parse-sass.sh script or keep SASS watching for changes as you
35 edit. This is done by running `bundle exec sass --watch --sourcemap=none .` If sass is out of date, or is
36 missing, you can install it with `bundle install`.