local update_font = function(newf)
    if font_height == newf then return end
    font_height = newf

  r.refresh_font = function()

  local update_font = function(newf)
    if font_height == newf then return end
    font_height = newf
    r.refresh_font()
  end

      for _,w in ipairs(widgets) do
        if w.refresh_font then w.refresh_font() end
      end