How to change Font Size on Widget.SerachField?

Let see below code to create search field. How can I change the font size of searchfield widget?

I try to use command - searchField.font = native.newFont(fontNameBold, sizefont ) but it’s not working on Iphone or Ipad. (the size is not changed)

and another question - Can I use Search field widget on Corona Starter Kit version?

local searchField = widget.newSearchField

                              {

                              left = 0,

                              top = 0,

                              width = 200,

                              placeholder = “Search Plus Size …”,

                              textFieldXOffset = 10,

                              listener = onSearchEvent,

                            }

        

        searchField.anchorX = 0.5;searchField.anchorY = 0.5; 

        searchField.x = display.contentCenterX

        searchField.y = welcometxt.y + welcometxt.contentHeight*0.5 + searchField.contentHeight/2 + 8

        searchField.font = native.newFont(fontNameBold, sizefont )