You can replace colours in bitmaps with the Colour Replacer tool.
Up to four colours can be replaced at once.
You can also use the Transparency option to replace the transparent areas of an image with a colour.
Similarly, you can use the Colour Replacer to make a colour on your image transparent.
Ensure that the image you are using is a bitmap (for example, BMP, GIF, JPG, or PNG) or a metafile (for example, WMF).
Choose Tools - Colour Replacer.
Click the Colour Replacer icon and position the mouse pointer over the colour you want to replace in the image. The colour appears in the box next to the icon.
Click the colour in the image. The colour appears in the first Source colour box and the check box next to the colour is selected.
In the Replace with box, select the new colour.
This replaces all occurrences of the Source colour in the image.
If you want to replace another colour while the dialogue box is open, mark the check box in front of Source colour in the next row and repeat steps 3 to 5.
If you want to expand or contract the colour selection area, increase or decrease the tolerance of the Colour Replacer tool and repeat your selection.