(form "20480" (size 61 13)
    (heading "VARIOGRAM STYLES")

    (field "line_style"
        (position 11 4)
        (display_length 4)
        (input allowed)
        (null allowed)
        (value_in   ""
                    "----"
                    "- -"
                    "...."
                    "-.-."
                    "-..-.."
                    "-..."
                    "-- --"
        )
        (default "")
    )

    (field "line_weight"
        (position 27 4)
        (display_length 4)
        (input allowed)
        (format real_8)
        (low_bound 0)
        (null allowed)
        (default "")
    )

    (field "line_vg"
        (position 4 7)
        (display_length 8)
        (input allowed)
        (null allowed)
        (value_in   ""
                    "Lines"
                    "Markers"
        )
        (default "Lines")
    )

    (field "label_size"
        (position 27 7)
        (display_length 4)
        (input allowed)
        (format real_8)
        (low_bound 0)
        (null allowed)
        (default "")
    )

    (field "marker_style"
        (position 11 10)
        (display_length 5)
        (input allowed)
        (null allowed)
        (value_in   ""
                    "*"
                    "X"
                    "+"
                    "."
                    "O"
                    "(*)"
                    "(.)"
                    "(+)"
                    "(x)"
                    "(O)"
                    "[]"
                    "[*]"
                    "[.]"
                    "[x]"
                    "<>"
                    "<*>"
                    "<.>"
                    "<+>"
                    "/\\"
                    "/*\\"
                    "/.\\"
                    "|>"
                    "|*>"
                    "|.>"
                    "<|"
                    "<*|"
                    "<.|"
                    "\\/"
                    "\\*/"
                    "\\./"
                    "#"
                    "++"
                    "/ \\"
                    "/_\\"
                    "/__\\"
                    "/_^_\\"
                    "|"
                    "/"
                    "\\"
                    "Y"
                    "Z"
        )
        (default "")
        )

    (field "marker_size"
        (position 27 10)
        (display_length 4)
        (input allowed)
        (format real_8)
        (low_bound 0)
        (null allowed)
        (default "")
    )

    (scroll_block "colours"
        (position 2 9)
        (size 53 3)
        (extra 0 1)
        (scroll_size 51 3)
        (repeat interactive
            (grow 0 1)
            (instances 1
                (min 1)
                (max 100)
            )
        )
        (top)
        (main
            (field "azimuth"
                (position 1 0)
                (display_length 10)
                (input disallowed)
            )
            (field "plunge"
                (position 13 0)
                (display_length 10)
                (input disallowed)
            )

            (field "chart_colour"
                (position 42 0)
                (display_length 10)
                (input allowed)
                (null disallowed)
                (default "black")
                (max_length 32)
            )
         
        )
    )

    (field "legend" (position 2 2)
      (display_length 2) (max_length 1) 
      (input allowed)
      (value_in "Y" "N")
      (default "N")
      (translate upper) (null disallowed)
    )

    (default_buttons)
)