Use the filters menu for selecting different filters to add special effects to the icon image. The menu contains the following entries:
Lighten: Makes the image lighter.
Darken: Makes the image darker.
Contrast: Adjusts the overall contrast and mixture of colors.
Blur: Bulrs the image.
Soften: Softens the image.
Sharpen: Focuses an image and improve its clarity.
Edge: Finds the areas in the image where significant color changes occur and sharpen them.
Emboss: Makes the icon appear raised or stamped.
Invert: Inverts the colors in an image.
Gray Scale: Uses up to 256 shades of gray.
Black and White: Changes all the colors in the image to black and white only with a value.
Replace Color ...: Replace one color with another color.
Exchange Color ...: Exchanges two different colors.