start clip rectangle 100 250 900 950
  start transform 1 0 0 1 0 0
    start transform 1 0 -0 1 0 0
      start clip glyph 10
        start transform 1 0 0 1 0 0
          linear gradient
            p0 100 250
            p1 900 250
            p2 100 300
            colors 1
              0 255 0 0 255
              1.5 0 0 255 255
        end transform
      end clip
    end transform
  end transform
end clip