1) You can modify default color palette used for Ad Hoc View based charts in scripts/adhoc/highchart.datamapper.js file: // // the highcharts default color palette // colors: [ '#4572A7', '#AA4643', '#89A54E', '#80699B', '#3D96AE', '#DB843D', '#92A8CD', '#A47D7C', '#B5CA92' ], You can modify these colors, add new and/or remove existing ones. 2) You can disable legend by adding legend: { enabled: false },option to default options used in scripts/adhoc/highcharts.api.js file: var highchartsOptions = { chart: { renderTo: 'chartContainer', zoomType: 'xy', jrstype: chartState.chartType, type: HighchartsDataMapper.cast[chartState.chartType] }, legend: { enabled: false }, credits: { enabled: false }, tooltip: { valueDecimals: 2 }, title: { // Skip internal Highcharts title. text: null } };Have in mind that changes will be applied to all Ad Hoc View based charts.