> For the complete documentation index, see [llms.txt](https://docs.theseaai.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.theseaai.com/tools/brush.md).
# Brush
Use brush tool to sketch directly on the scene to define areas, highlight changes, and guide generation.
***
## When to use
Use **`Brush`** to draw shapes on the canvas and guide AI Models in **Image to image generation** and **`Combo`** tasks. Read more about using brush as guide [here](/tasks/model.md#optional-use-the-brush-tool)
***
## How to use
The **Brush** tool is available with all tasks.
{% stepper %}
{% step %}
#### Select the "Brush" Tool
Under the scene, select the :paintbrush:**Brush** from the tools menu.
{% endstep %}
{% step %}
#### Draw on the Scene
Draw shapes directly on the canvas to indicate areas of change.
{% endstep %}
{% step %}
#### **Adjust Brush Size**
**In the brush sub-menu:**
* Slide the size indicator to adjust brush thickness.
* Enter a numerical value manually.
* Select a numerical value by hovering over the displayed number.
{% endstep %}
{% step %}
#### Change Brush Color
Each selected color will create a separate layer. Use different colors to separate instructions.
**From the brush sub-menu:**
1. Select the color circle on the left side of the sub-menu.
2. Select from the color palette
3. Select a color using the :eye-dropper: color picker tool
4. Input a HEX color value in the text input field
{% endstep %}
{% endstepper %}
---
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