Box Contour
Each grid cell is given a colour according to the value in the cell.
Secondary Options: No. 1
Box Contour with transparency
Each grid cell is given a colour according to the value in the cell.
Secondary Options: No. 1 and No. 2
Shaded Contour
The grid is covered with colours indicating the values in the cells, a smooth surface is used. The land values will always be displayed in green.
Secondary options: No. 3 or No. 4 or No. 5 + No. 2
No Contour
Used in connection with background overlays. The bathymetry will not be shown.