918c063693
As first mentioned in commit 672171093, the CSS spec defines shadow colors independently from the colors casting the shadow. It's not a physical light simulation so a shadow is allowed to be a different color from texture casting it. This means we only care about the shape of the source where alpha values of zero are adjacent to alpha values of non-zero. And all such non-zero pixels should be treated as fully opaque for the purpose of shadow generation. While this would be wrong for a physical light simulation it does allow us to cast shadows around semi-translucent shapes and better support CSS. Fixes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/4477 Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1918>
GNOME Shell
GNOME Shell provides core user interface functions for the GNOME desktop, like switching to windows and launching applications. GNOME Shell takes advantage of the capabilities of modern graphics hardware and introduces innovative user interface concepts to provide a visually attractive and easy to use experience.
For more information about GNOME Shell, including instructions on how to build GNOME Shell from source and how to get involved with the project, see the project wiki.
Bugs should be reported to the GNOME bug tracking system. Please refer to the Schedule wiki page to see the supported versions.
Contributing
To contribute, open merge requests at https://gitlab.gnome.org/GNOME/gnome-shell.
Commit messages should follow the GNOME commit message guidelines. We require an URL to either an issue or a merge request in each commit.
Default branch
The default development branch is main. If you still have a local
checkout under the old name, use:
git checkout master
git branch -m master main
git fetch
git branch --unset-upstream
git branch -u origin/main
git symbolic-ref refs/remotes/origin/HEAD refs/remotes/origin/main
License
GNOME Shell is distributed under the terms of the GNU General Public License, version 2 or later. See the COPYING file for details.