> For the complete documentation index, see [llms.txt](https://docs.realmacsoftware.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.realmacsoftware.com/squash/quick-guide/nodes/adjustments.md).
# Adjustments
Enhance image details
Use **Adjustments** to change the appearance of your images. There is no on/off switch: adjustments apply whenever a slider is moved away from its default, and you can combine any of the six controls.
| Adjustment | What it does |
| ---------- | -------------------------------------------------------------------------------------- |
| Brightness | Lighten or darken the image. The default is 0%. |
| Contrast | Increase or decrease the difference between light and dark areas. The default is 100%. |
| Sepia | Add a brown-toned wash for an older photographic look. |
| Monochrome | Desaturate the image towards black and white. |
| Sharpen | Increase edge definition. |
| Vibrance | Adjust colour intensity. |
Double-click an adjustment's percentage to reset it to its default value. Once any slider has moved, a reset button (a circular arrow) appears beside the section title; click it to return every slider to its default and stop applying adjustments.
Use the [preview pane](/squash/quick-guide/editor.md) to compare the original and output as you adjust the sliders. A setting that suits one photo may look different on another, so check a few images in your batch before exporting.
Save a combination you use regularly as a [Preset](/squash/quick-guide/presets.md).
Squash 3 reference screenshots
These screenshots show the earlier Squash 3 interface.
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