How to resize a panel unity

// To Change the "Scale" property use localScale, like this
// Change the numbers in the "()" to your choosen scale
public GameObject YourPanel;
YourPanel.GetComponent<RectTransform>().localScale = new Vector3(newWidthUI, newHeightUI, 1);

// If you want to change it in pixels
public GameObject yourUI;
yourUI.GetComponent<RectTransform>().sizeDelta = new Vector2(newWidthUI,newHeightUI);

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