After reading the license of i3lock-color, it seems that it is just a MIT license. The AUR package maintained by the author of i3lock-color uses MIT license, too.
Here is the link to the package on AUR, maintained by the author himself: https://aur.archlinux.org/packages/i3lock-color
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/proj/guru.git/commit/?id=18f04d355ea0ae2d5ae6e870679c205a0c621ea2 commit 18f04d355ea0ae2d5ae6e870679c205a0c621ea2 Author: Jian Lin <jlin.gentoo@outlook.com> AuthorDate: 2020-12-24 15:18:14 +0000 Commit: Jian Lin <jlin.gentoo@outlook.com> CommitDate: 2020-12-24 15:18:14 +0000 x11-misc/i3lock-color: fix license to MIT Closes: https://bugs.gentoo.org/761211 Package-Manager: Portage-3.0.9, Repoman-3.0.2 Signed-off-by: Jian Lin <jlin.gentoo@outlook.com> licenses/i3lock-color | 31 ------------------------ profiles/license_groups | 2 +- x11-misc/i3lock-color/i3lock-color-2.12.5.ebuild | 2 +- x11-misc/i3lock-color/i3lock-color-2.13.1.ebuild | 2 +- x11-misc/i3lock-color/i3lock-color-9999.ebuild | 2 +- 5 files changed, 4 insertions(+), 35 deletions(-)