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The display shows all pixels that are identical in each file as Gray, pixels unique to the original file as Blue and pixels unique to the compared file as Red.
You can use the following keyboard shortcuts in Compare Mode:
| Action | Mac | Windows |
|---|---|---|
| Compare Mode | ||
| Select First Separation | Command + 1 | Control + I |
| Select First Separation | Command + 2 | Control + I |
| Toggle Compare On/Off | Shift + 3 | Control + 3 |