final linuxIcons = LinuxIcons([ 'ubuntu', 'arch', 'centos', 'debian', 'fedora', 'opensuse', 'kali', 'wrt', 'armbian' ]); class LinuxIcons { List db; LinuxIcons(this.db); String? search(String sysVer) { for (var item in db) { if (sysVer.toLowerCase().contains(item)) { return 'assets/linux/$item.png'; } } return null; } }