https://specifications.freedesktop.org/icon-theme-spec/icon-theme-spec-latest.html
> Each directory contains icons designed for a certain nominal icon size and
> scale, as described by the index.theme file
...
> list of subdirectories for this theme. For every subdirectory there must be a
> section in the index.theme file describing that directory.
Just my 2 cents, but since the specification specifically allows theme
authors to do whatever, if ECM doesn't support that then ECM appears
not spec compliant.
On Thu, Nov 2, 2023 at 2:36 PM David Jarvie <djar...@kde.org> wrote:
>
> Breeze installs its icons in a different directory structure from other icon
> themes, with the result that the ECM cmake command ecm_install_icons doesn't
> work for Breeze icons. The only way to install an application specific Breeze
> icon is to hard code its location, for example
> "${KDE_INSTALL_ICONDIR}/breeze/actions/22/". I raised a bug against ECM about
> this, but not unexpectedly it has been rejected as a Breeze issue (see
> https://bugs.kde.org/show_bug.cgi?id=476208).
>
> Fixing this in Breeze would obviously be a significant change for Breeze, but
> having a non-working ecm_install_icons function isn't really acceptable. This
> should ideally be fixed one way or the other in time for the KF6 release.
> --
> David Jarvie
> KAlarm author, KDE developer
