> For the complete documentation index, see [llms.txt](https://docs.wisej.com/system.drawing.managed/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wisej.com/system.drawing.managed/api/system.drawing.imaging/system.drawing.imaging.colormatrixflag.md).

# ColorMatrixFlag

Namespace: **System.Drawing.Imaging**

Assembly: **System.Drawing.Managed** (4.0.0.0)

Specifies available options for color-adjusting. GDI+ can adjust color data only, grayscale data only, or both.

{% tabs %}
{% tab title="C#" %}

```csharp
public enum ColorMatrixFlag : Enum
```

{% endtab %}

{% tab title="VB.NET" %}

```visual-basic
Public Enum ColorMatrixFlag As [Enum]
```

{% endtab %}
{% endtabs %}

## Fields

| Name          | Description                                                                                                                                           |
| ------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------- |
| **AltGrays**  | Only gray shades are adjusted.                                                                                                                        |
| **Default**   | All color values, including gray shades, are adjusted by the same color-adjustment matrix.                                                            |
| **SkipGrays** | All colors are adjusted, but gray shades are not adjusted. A gray shade is any color that has the same value for its red, green, and blue components. |

## Used By

| Name                                                                                                                             | Description                                                                                    |
| -------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------- |
| [ImageAttributes.SetColorMatrix](/system.drawing.managed/api/system.drawing.imaging/system.drawing.imaging.colormatrixflag.md)   | Sets the color-adjustment matrix for the default category.                                     |
| [ImageAttributes.SetColorMatrices](/system.drawing.managed/api/system.drawing.imaging/system.drawing.imaging.colormatrixflag.md) | Sets the color-adjustment matrix and the grayscale-adjustment matrix for the default category. |


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