Title: Color and effects Description: Crop images, adjust a layer or page, add effects, and remove backgrounds. Canonical: https://docs.openpo.st/image-editor/color-and-effects Source: [https://docs.openpo.st/image-editor/color-and-effects](https://docs.openpo.st/image-editor/color-and-effects) # Color and effects Select an image layer to crop it or make a quick correction. Open **Color** when you need the same controls across a full page or want wheels, curves, scopes, and before-and-after comparison. ## Crop and adjust one image In **Properties**, open **Crop** to choose the visible part of the source. The original file remains unchanged. Use a quick look such as **Warm**, **Cool**, or **Mono**, or adjust tone and color yourself. Available controls include brightness, exposure, contrast, highlights, shadows, temperature, tint, vibrance, saturation, hue, and blur.  Tone controls adjust brightness, exposure, contrast, highlights, and shadows for the selected image. ## Grade a layer or page Open **Color**, then choose the scope: - **Layer** changes the selected unlocked image layers. - **Pages** changes the combined page output once, after its layers are composed. Start with a preset or the basic tone and color controls. Use Lift, Gamma, Gain, and Offset wheels for tonal ranges. Use curves for the master, red, green, or blue channel. The scopes report the current image while you work. Compare **Before** and **After**, then reset the section or the full grade if needed. ## Add layer effects Properties can apply blend modes, strokes, drop shadows, inner shadows, and shape masks. Effect controls vary by layer type. A mask changes the visible shape of an image or shape layer without changing its source. Keep effects tied to the job the design must do. Check text and logo edges at the final export size, not only while zoomed into the canvas. ## Remove an image background Select an image layer and choose **Remove background**. The feature loads only when you use it and processes the image in your browser. It uses graphics hardware when available and the processor when needed. It does not send the image to another background-removal service.  Remove background creates a transparent copy and keeps the original unchanged. The result is a new transparent PNG in Media. You can undo the layer change. OpenPost may process a smaller temporary copy for a large image without changing the original file.