## Intro  
**Material Overrides** allow materials inside complex/deep mesh structures like SVGs or Text to be edited. This can be achieved via the [Sub-Mesh](/content/docs/nodes/behaviours/sub-mesh/index.html) Behaviour's Fill or Stroke tabs.

By adding an **Alpha Material Override** to a Sub-Mesh, it's possible to blend between the original alpha and the one set by the Override. A [Falloff](/content/docs/nodes/utilities/falloff/index.html) can then be added to the **Sub-Mesh** to control the effect.

## UI  
[Common Attributes](/content/docs/nodes/behaviours/common-attributes-behaviours/index.html) +

**Alpha** - Set a value for the alpha.

### Example

1. Import an SVG into the [Assets Window](/content/docs/user-interface/menus/window-menu/assets-window/index.html).
2. Drag it into the [Viewport](/content/docs/user-interface/menus/window-menu/viewport/index.html) and choose **Asset Layer** from the options to create an [SVG Shape](/content/docs/nodes/shapes/svg-shape/index.html).
3. Connect a [Sub-Mesh](/content/docs/nodes/behaviours/sub-mesh/index.html) to the **Deformer** attribute of the **SVG Shape**.
4. On the **Sub-Mesh**, switch to the **Fill** tab in the [Attribute Editor](/content/docs/user-interface/menus/window-menu/attribute-editor/index.html).
5. Use the `+` button to add an **Alpha Material Override** to the **Fill Overrides** attribute.
6. Set **Alpha** to **0.**
7. On the **Alpha Material Override**, open the **Falloff** tab and right click to add a [Falloff](/content/docs/nodes/utilities/falloff/index.html).
8. Move the **Falloff** over the **SVG Shape**.

As the Falloff moves over parts of the SVG, they will become transparent.