text: muonApp.controller('HowTo4Ctrl', function ($scope, $stateParams) {
    gameCore.RestartGame(false);
    tutorial.IS_TUTORIAL = true;
    tutorial.index = 1;
  
    var stepContent = document.getElementById('step-content');
    stepContent.innerHTML = 'Try to gain control of the atom by forming a triangle in one of the quadrants...';
  
  });