private Rect GetInputPointRect(NodeGUI node)
{
var baseRect = node.Region;
return new Rect(
baseRect.x - 2f,
baseRect.y + buttonRect.y + 3f,
AssetBundleGraphGUISettings.CONNECTION_POINT_MARK_SIZE,
AssetBundleGraphGUISettings.CONNECTION_POINT_MARK_SIZE
);
}