example of globally setting options for all charts

highcharts_init_charts.js

      init_charts: function() {
        Highcharts.setOptions({
          colors: ['#058DC7', '#50B432', '#ED561B', '#DDDF00', '#24CBE5', '#64E572', '#FF9655', '#FFF263', '#6AF9C4'],
          tooltip: {
            shadow: false,
            backgroundColor: 'rgba(0, 0, 0, .85)',
            borderRadius: 3,
            borderWidth: 0,
            style: {
                padding: 5,
                fontSize: '10px',
                fontFamily: 'Tahoma, verdana, sans-serif',
                color: '#fff'
            }
          },
          plotOptions: {
            column: {
              borderWidth: 1,
              pointPadding: 0,
              groupPadding: 0,
              shadow: false
            }
          },
          xAxis: {
            lineColor: '#ccc',
            tickPosition: 'outside',
            tickmarkPlacement: 'on',
            tickColor: '#ccc'
          },
          yAxis: {
              title: {
                  text: null
              },
              gridLineColor: '#eee'                
          },
          credits: {
              enabled: false
          }
        });
      }