Improve appearance of tray icon theme selection
Improve appearance of tray icon theme selection

yuya-oc/electron-mattermost,mattermost/desktop,mattermost/desktop,jnugh/desktop,mattermost/desktop,jnugh/desktop,yuya-oc/desktop,yuya-oc/electron-mattermost,mattermost/desktop,mattermost/desktop,yuya-oc/electron-mattermost,yuya-oc/desktop,jnugh/desktop,yuya-oc/desktop