Name : XSane
Homepage : http://xsane.org/
License : GPL2
Source : http://www.xsane.org/download/xsane-0.999.tar.gz
Package.yml : https://bitbucket.org/!api/2.0/snippets/josephpaul0/Ke5dK8/81c10eae96ad5b1f18d5ffd958fd1264b239b04d/files/package.yml
XSane is included in the repository of all major distributions for more than 15 years.
It has much more features than "Gnome Simple Scan" (powerful preview mode with area selection, color tuning, full dpi range, etc..)
Best regards,