The Rainbow

Add this line and six others to index.html

    <img src='images/rainbow/red.png' id='r' class='item rainbow'>

Add this to styles.css

.rainbow {
  grid-row: 1 / span 5;
  grid-column: 1 / span 8;
  opacity: .4;
}

Note the opacity line.


Add this to set_scene.js

  if (n==1) {
    if (!g_red) Show('r');
    if (!g_orange) Show('o');
    if (!g_yellow) Show('y');
    if (!g_green) Show('g');
    if (!g_blue) Show('b');
    if (!g_indigo) Show('i');
    if (!g_violet) Show('v');
  }

Note the exclamation mark (!) which is JavaScript for not.