If you're using PuTTY, you may need to `export NCURSES_NO_UTF8_ACS=1` or change "Terminal-type string" from "xterm" to "linux" in Connection>Data for the boxes to be displayed correctly.
Unfortunately, Windows is not supported. It relies on systeminformation* package and it does not cover all resources for Windows. PRs are welcome to fix the issues for Windows.
Sources: - https://superuser.com/questions/278286/making-256-color-and-... - https://superuser.com/questions/735269/why-does-yast-now-sho...