# Introduction to Adjustment Tools
The Adjustment tools give you control over the brightness, contrast and color in your image. They are non-destructive, meaning that they won't be permanently applied to the image until you click the 'Apply' button (so if you save the image without clicking 'Apply', the saved image will not have been modified).
The Adjustments panel.
1: This panel contains the 'Apply' button and the color space buttons. When 'Apply' is clicked, the adjustments are committed to the image permanently. If you are using a GPU or OpenCL for processing, you can choose to make the adjustments in either Lab or RGB color space. If you don't have any hardware acceleration, only RGB color space will be available.
2: The Light panel has adjustments that change the brightness and contrast.
3: The Color panel lets you change the colors.
4: The Contrast panel has fine-grained contrast adjustments where contrast can be adjusted in the shadows, midtones and/or highlights.
5: The Curves panel lets you set the intensity curve. Creating a custom intensity curve is a powerful tool for extract the most from your images.
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://astra-image.gitbook.io/astra-image-6.0/adjustment-tools/introduction-to-adjustment-tools.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.