/usr/ is in ruby-color 1.8-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/ruby-color/
/usr/share/
/usr/share/doc/
/usr/share/doc/ruby-color/changelog.Debian.gz
/usr/share/doc/ruby-color/changelog.gz
/usr/share/doc/ruby-color/copyright
/usr/share/rubygems-integration/
/usr/share/rubygems-integration/all/
/usr/share/rubygems-integration/all/specifications/
/usr/share/rubygems-integration/all/specifications/color-1.8.gemspec
/usr/lib/
/usr/lib/ruby/
/usr/lib/ruby/vendor_ruby/
/usr/lib/ruby/vendor_ruby/color.rb
/usr/lib/ruby/vendor_ruby/color/
/usr/lib/ruby/vendor_ruby/color/cmyk.rb
/usr/lib/ruby/vendor_ruby/color/hsl.rb
/usr/lib/ruby/vendor_ruby/color/grayscale.rb
/usr/lib/ruby/vendor_ruby/color/rgb/
/usr/lib/ruby/vendor_ruby/color/rgb/metallic.rb
/usr/lib/ruby/vendor_ruby/color/rgb/colors.rb
/usr/lib/ruby/vendor_ruby/color/rgb/contrast.rb
/usr/lib/ruby/vendor_ruby/color/css.rb
/usr/lib/ruby/vendor_ruby/color/yiq.rb
/usr/lib/ruby/vendor_ruby/color/palette/
/usr/lib/ruby/vendor_ruby/color/palette/monocontrast.rb
/usr/lib/ruby/vendor_ruby/color/palette/gimp.rb
/usr/lib/ruby/vendor_ruby/color/palette/adobecolor.rb
/usr/lib/ruby/vendor_ruby/color/rgb.rb
/usr/lib/ruby/vendor_ruby/color/palette.rb