code: def __init__(self, grid, fn_clicked, tooltip, label):
      self._corner = grid.GetGridCornerLabelWindow()
  
      bmp = wx.Bitmap(get_builtin_image("IMG_UPDATE"))
  
      self._bmp_btn = wx.lib.buttons.GenBitmapTextButton(
          self._corner, bitmap=bmp, size=self._corner.GetSize()
      )
      self.fn_clicked = fn_clicked
      self.tooltip = tooltip
      self.label = label
  
imports: import wx
  import wx.lib.mixins.gridlabelrenderer
  from cellprofiler.icons import get_builtin_image
label_desc: Use image node_id 1 to create a new CornerLabelRenderer object from inherited base classes: wxglr with example: obj = CornerLabelRenderer(grid, fn_clicked, tooltip, label)