When I switch the icon theme in XFCE settings under Appearance, the icons of mpc-plugin does not update automatically. One workaround for me was to toggle the frame setting of mpc-plugin to update the icons. I'm not sure if this is intended but it is a bit confusing for me.
Can you recheck with 0.5.1 ? Switching from which theme to which theme ?
-- GitLab Migration Automatic Message -- This bug has been migrated to xfce.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.xfce.org/panel-plugins/xfce4-mpc-plugin/-/issues/3. Please create an account or use an existing account on one of our supported OAuth providers. If you want to fork to submit patches and merge requests please continue reading here: https://docs.xfce.org/contribute/dev/git/start#gitlab_forks_and_merge_requests Also feel free to reach out to us on the mailing list https://mail.xfce.org/mailman/listinfo/xfce4-dev