Grid Style

Grid Style

Grid Style is applicable for grid format.

Select the color to show as transparent
Select to specify the color that you want to become as transparent. A color picker with color palette appears once you have selected this check box. Select a color from the palette by clicking inside the palette. To change the color range, drag the color slider located below the color palette. The palette displays the colors falling in the selected range.
You can also provide a hex value, RGB, or HSL values to get the exact color you need. By default you see the Hex field but you can switch to RGB and HSL modes by successively clicking the small arrow button located in the right.
Note: You can reset the selected color by clicking Refresh and then you can start over the color selection.
Opacity

Select the opacity using up and down buttons. You can choose any value between 0 and 100 where 0 is totally transparent and 100 is fully opaque. The default value is 100.

Contrast
Select the contrast using up and down buttons. You can choose any value between 0 and 100 where 0 is no contrast and 100 is fully contrast. Contrast helps in making a map more readable and clearer. Adjusting the contrast makes it easier to differentiate between raster image and additional layers that rest on top of the raster. The default value is 50.
Brightness

Select the brightness using up and down buttons. You can choose any value between 0 and 100 where 0 is no brightness and 100 is fully bright. Brightness helps in making a map more readable and clearer. Adjusting the brightness makes it easier to differentiate between raster image and additional layers that rest on top of the raster. The default value is 50.

Show as grayscale
Select to change the color raster image to grayscale. Shades range from white to black.
Show Hillshade
Select to display the image with hill shading to create a 3d appearance. Hill shading darkens areas that are sloped or obscured by higher elevated areas. It works on the premise of brightening areas that face the sun directly. Hill shading can significantly enhance the visualization of a surface for analysis or graphical display.