forked from AuroraMiddleware/gtk
0dcf95b898
Rename the included theme to Default, with 4 variants: light, dark, hc, hc-dark. This replaces Adwaita, Adwaita:dark, HighContrast and HighContrastInverse. We still make the themes available under these names, and we still set up Adwaita-dark and HighContrastInverse as the dark variants of Adwaita and HighContrast. The unification of the theme variants under Default is not quite perfect; it would be nice to merge the assets/ and assets-hc/ subdirectories and render all assets from a single svg file.
46 lines
2.0 KiB
Plaintext
46 lines
2.0 KiB
Plaintext
Summary
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-------
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* To be able to use the latest/adequate version of sass, install sassc
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* meson will regenerate the CSS every time you modify the SCSS files.
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* Note that meson always builds out-of-tree, so the modified css files will
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appear in your builddir.
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Theme variants
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--------------
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The Default theme comes in 4 variants: light, dark, hc (highcontrast) and
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hc-dark (highcontrast inverse). The generated CSS files for the variants
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are called Default-$variant.css. For technical reasons, GTK adds one level
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of include wrappers around these, which are called gtk-$variant.css.
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How to tweak the theme
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----------------------
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Default is a complex theme, so to keep it maintainable it's written and
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processed in SASS. The generated CSS is then transformed into a gresource file
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during gtk build and used at runtime in a non-legible or editable form.
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It is very likely your change will happen in the _common.scss file. That's where
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all the widget selectors are defined. Here's a rundown of the "supporting"
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stylesheets, that are unlikely to be the right place for a drive by stylesheet
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fix:
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_colors.scss - global color definitions. We keep the number of defined
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colors to a necessary minimum, most colors are derived
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from a handful of basics. It covers both the light variant
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and the dark variant.
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_colors-public.scss - SCSS colors exported through gtk to allow for 3rd party
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apps color mixing.
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_drawing.scss - drawing helper mixings/functions to allow easier
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definition of widget drawing under specific context. This
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is why Default isn't 15000 LOC.
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_common.scss - actual definitions of style for each widget. This is
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where you are likely to add/remove your changes.
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You can read about SASS at http://sass-lang.com/documentation/. Once you make
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your changes to the _common.scss file, GTK will rebuild the CSS files.
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