text: var dataset = ee.ImageCollection('LANDSAT/LT04/C01/T1_ANNUAL_NBRT')
                    .filterDate('1989-01-01', '1992-12-31');
  var colorized = dataset.select('NBRT');
  var colorizedVis = {
    min: 0.9,
    max: 1.0,
    palette: ['000000', 'FFFFFF'],
  };
  Map.setCenter(6.746, 46.529, 6);
  Map.addLayer(colorized, colorizedVis, 'Colorized');
  