<!-- Public documentation export; not library implementation source. -->
# StudyFilledAreaGradientColorStyle

[Integration guide](https://docs.lumencharts.com/charting-library/reference/compatibility) · [Reference index](https://docs.lumencharts.com/charting-library/api/)

Public contract reference. This declaration describes types and callback shapes; availability is constrained by the linked integration guide and the runtime capability. Legacy product-specific fields are not a promise of implementation.

## Extends

[StudyFilledAreaStyleBase](https://docs.lumencharts.com/charting-library/api/StudyFilledAreaStyleBase)

## fillType {#filltype}

```ts
fillType: "gradient";
```

Use the type signature above and the integration guide for the owning capability.

## topColor {#topcolor}

```ts
topColor?: string;
```

Use the type signature above and the integration guide for the owning capability.

## bottomColor {#bottomcolor}

```ts
bottomColor?: string;
```

Use the type signature above and the integration guide for the owning capability.

## topValue {#topvalue}

```ts
topValue?: number;
```

Use the type signature above and the integration guide for the owning capability.

## bottomValue {#bottomvalue}

```ts
bottomValue?: number;
```

Use the type signature above and the integration guide for the owning capability.

## Related types

- [StudyFilledAreaStyleBase](https://docs.lumencharts.com/charting-library/api/StudyFilledAreaStyleBase)

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Documentation page: https://docs.lumencharts.com/charting-library/api/StudyFilledAreaGradientColorStyle