This is an SDDM theme consisting of a simple login dialog. It is built with Qt Quick Controls. Its appearance depends on the selected Qt Quick style.
1. Download the archive "dialog.tar.gz" from the section "Files" above.
2. Extract the archive to SDDM's theme directory:
$ sudo tar -xf dialog.tar.gz -C /usr/share/sddm/themes/
3. The theme must be enabled in one of SDDM's configuration files. Either the file "/etc/sddm.conf" or a file in the directory "/etc/sddm.conf.d/" can be used (refer to "man sddm.conf" for details). In the section "[Theme]" in one of the files, set "Current" to "dialog":
Refer to the GitHub page for configuration instructions: https://github.com/joshuakraemer/sddm-theme-dialog.
This theme is provided under the ISC license. See the file "LICENSE" in the GitHub repository for details.
Wallpapers used in the screenshots: