Component image 
RectSizeDriver component as seen in the Scene Inspector

The RectSizeDriver component is used to change the size of a RectTransform (or any other float2 value).
Name | Type | Description |
---|---|---|
persistent
|
Bool | Determines whether or not this item will be saved to the server. |
UpdateOrder
|
Int | Controls the order in which this component is updated. |
Enabled
|
Bool | Controls whether or not this component is enabled. Some components stop their functionality when this field is disabled, but some don't. |
TargetSize
|
field drive of Float2 | The target to scale using this component. |
Scale
|
Float2 | The scale to adjust. |