Use the Invert Colors Effect to invert RGB color values during the capture process. There are no custom options for this Effect. The following graphic shows a sample invert color Effect.
1. Original capture
2. Invert Colors

Setup Instructions
1. In SnagIt, select Image capture mode.
2. Select the Input and Output.
3. Select Effects down arrow > Color Substitution > Invert Colors.
4. Click the Capture button or press the capture hotkey. The capture is sent to the selected Output.
To disable the Invert Color
effect, select Effects down arrow > Color Depth >
None.
For additional effects, see Add an Effect during Image Capture.