anchor.diff:  people.add(new Person("Johannes Kepler", 1571));
   
   // Create a grid
  -Grid<Person> grid = new Grid(people);
  +Grid<Person> grid = new Grid<>(people);
   
   // Render a button that deletes the data row (item)
   grid.addColumn(person -> "Delete", 
  
positive.code: +
  [source, java]
  ----
  // Use String.format() formatting
  Column<Double> ratingCol = grid.addColumn("rating",
        new NumberRenderer("%02.4f", Locale.ENGLISH));
  ----
  
  [classname]#ProgressBarRenderer#:: Renders a progress bar in a column with a [classname]#Double# type. The value
  
negative.code: +
  [source, java]
  ----
  Column<ThemeResource> imageColumn = grid.addColumn(
      p -> new ThemeResource("img/"+p.getLastname()+".jpg"),
      new ImageRenderer());
  ----
  
  [classname]#DateRenderer#:: Formats a column with a [classname]#Date# type using string formatter. The
  