You can use the Erase tool to remove colors from your image.
On the Drawing toolbar, click the Erase button.
Paint on those colors in the image that you want to erase. Hold down the left mouse button while erasing to reveal background.
Transparency |
Specifies the transparency of Erasing. |
Width |
Specifies the line width in pixels. Higher value made wider transparent area. |
Type |
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Cap |
Specifies an end cap style to add to the line of erasing.
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