* GTK ico
Restoring the more contemporary GTK icon makes some sense after being in GTK for the last while. Current 3.0 builds in flatpak, snap etc are using it, and having the client and tray match seems right.
* Updated the svg -> ico conversion method for better scaling
* Support .git files (e.g. for worktrees, submodules)
* Fix symlinks in source tarball, switch to TXZ, adjust non-release name
* Remove autotools stuff
The -symbolic icon variant (if available) is used in the GNOME top bar,
and when the high contrast theme is in use. This icon was created by
Jakub Steiner, and comes from the gnome-icons repository:
https://github.com/gnome-design-team/gnome-icons/blob/master/apps-symbolic/Adwaita/scalable/apps/transmission-symbolic.svghttps://bugzilla.redhat.com/show_bug.cgi?id=1221292
There is some confusion over whether symbolic app icons should be
installed to icons/hicolor/scalable/apps (alongside the regular scalable
icon) or to icons/hicolor/symbolic/apps. On the one hand,
https://wiki.gnome.org/Initiatives/GnomeGoals/HighContrastAppIcons has
this to say:
> […] obtain a suitable symbolic style icon […] and install it to the
> hicolor prefix, the same way you would for the full color variant.
>
> cp myapp-symbolic.svg /usr/share/icons/hicolor/scalable/apps/myapp-symbolic.svg
On the other hand, the Fedora package at
https://src.fedoraproject.org/rpms/transmission/blob/master/f/transmission.spec
ships this icon in icons/hicolor/symbolic/apps:
> # Install the symbolic icon
> mkdir -p %{buildroot}%{_datadir}/icons/hicolor/symbolic/apps
> cp %{SOURCE1} %{buildroot}%{_datadir}/icons/hicolor/symbolic/apps/transmission-symbolic.svg
Anecdotally, icons in scalable/ have minimum size 64×64 on openSUSE, so
symbolic/ is the safer location (given the GNOME top bar uses 32×32
icons). This has the advantage of matching the location used in the
distribution which already ships this file.
https://github.com/transmission/transmission/issues/414
