    # File lib/compass/commands/project_stats.rb, line 108
          def css_columns(css_file)
            if File.exists?(css_file)
              cf = Compass::Stats::CssFile.new(css_file)
              cf.analyze!
              %w(selector_count prop_count).map do |t|
                cf.send(t).to_s
              end
            else
              return [ '--', '--' ]
            end
          rescue LoadError
            @missing_css_parser = true
            return [ 'DISABLED', 'DISABLED' ]
          end