anchor.diff:  //        
   
           let filled = Mod.init true
  -        let text = Mod.init "hi"
  -
  +        let text = Mod.init """font"""
  +
  +        let size = 0.15
           let sg =
               Rewrite.Sg.Text(test, text)
   //            char 
  
positive.code:                                 :> IBuffer
  
                          let offsets = 
                              font.Layout(str)
                                  |> Array.map V2f.op_Explicit
                                  |> ArrayBuffer
                                  :> IBuffer
  
  
negative.code:                 | (true, v) -> v
                  | _ -> 0.0
  
          let getGlyphSizes (c : char) =
              sizesABC.GetOrAdd(c, fun c ->
                  let abc = FontInfo.getCharWidths graphics largeScaleFont c
                  abc
              )
  
          let getGlyph (c : char) =
  