Source string
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This allows you to bend the rules for how different the proportions need to be to trigger the switch.
If the (width/height)*n is greater than 1, use 'landscape', otherwise use 'portrait'.
When n = 1 (the default) it will switch between portrait and landscape modes.
If n > 1, images that are slightly wide will still be treated as portraits. If n < 1 then blunt portraits will be treated as landscape.
Used at the following places
- image_effects: 1.x-1.13.2 (1)