Upstream provides the file logo.png to be used as icon for Linux .desktop files
I think this is best fixed upstream so that all downstream users benefit from it. Feel free to create an upstream PR that will install a .desktop file.
Related downstream bug https://github.com/daid/EmptyEpsilon/issues/405
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=e6ba27a83a9b9e1df6b4e370e15e6a798f08060e commit e6ba27a83a9b9e1df6b4e370e15e6a798f08060e Author: Florian Schmaus <flow@gentoo.org> AuthorDate: 2021-10-21 10:52:39 +0000 Commit: Florian Schmaus <flow@gentoo.org> CommitDate: 2021-10-21 11:13:11 +0000 games-simulation/EmptyEpsilon: install .desktop file Closes: https://bugs.gentoo.org/818697 Signed-off-by: Florian Schmaus <flow@gentoo.org> ...23.ebuild => EmptyEpsilon-2021.06.23-r1.ebuild} | 1 + ...EmptyEpsilon-Install-EmptyEpsilon.desktop.patch | 45 ++++++++++++++++++++++ 2 files changed, 46 insertions(+)