/usr/share/ruby-rails-assets-jquery-colorbox/app/assets/stylesheets/ is in ruby-rails-assets-jquery-colorbox 1.6.3~dfsg-5.
This file is owned by root:root, with mode 0o755.
..
/usr/share/ruby-rails-assets-jquery-colorbox/app/assets/stylesheets/colorbox/
/usr/share/ruby-rails-assets-jquery-colorbox/app/assets/stylesheets/colorbox.scss
/usr/share/ruby-rails-assets-jquery-colorbox/app/assets/stylesheets/colorbox/colorbox.scss
/usr/share/ruby-rails-assets-jquery-colorbox/app/assets/stylesheets/jquery-colorbox/
/usr/share/ruby-rails-assets-jquery-colorbox/app/assets/stylesheets/jquery-colorbox/example1/
/usr/share/ruby-rails-assets-jquery-colorbox/app/assets/stylesheets/jquery-colorbox/example1/colorbox.scss
/usr/share/ruby-rails-assets-jquery-colorbox/app/assets/stylesheets/jquery-colorbox/example2/
/usr/share/ruby-rails-assets-jquery-colorbox/app/assets/stylesheets/jquery-colorbox/example2/colorbox.scss
/usr/share/ruby-rails-assets-jquery-colorbox/app/assets/stylesheets/jquery-colorbox/example3/
/usr/share/ruby-rails-assets-jquery-colorbox/app/assets/stylesheets/jquery-colorbox/example3/colorbox.scss
/usr/share/ruby-rails-assets-jquery-colorbox/app/assets/stylesheets/jquery-colorbox/example4/
/usr/share/ruby-rails-assets-jquery-colorbox/app/assets/stylesheets/jquery-colorbox/example4/colorbox.scss
/usr/share/ruby-rails-assets-jquery-colorbox/app/assets/stylesheets/jquery-colorbox/example5/
/usr/share/ruby-rails-assets-jquery-colorbox/app/assets/stylesheets/jquery-colorbox/example5/colorbox.scss