How to edit Text Mesh Pro face dilate through script

I’m trying to make my menu more dynamic and want the options to fade in and out on click by dilating the face of the text with text mesh pro, but cant figure out how to edit that through script. Help would be appreciated, thanks!

According to this forum post, the dilate effect can be adjusted through a shader property on its font material. As an example:

public TextMeshProUGUI tmp;

void Start()
{
    this.tmp.fontMaterial.SetFloat(ShaderUtilities.ID_FaceDilate, 0.5f);
}

where the ShaderUtilities class has a convenient shader property ID there already.