sBg: '#0b0f20', textColor: '#f1f3ff'
      });
      $('#fileInput').value = '';
      $('#labelColumn').innerHTML = '';
      $('#valueColumn').innerHTML = '';
      $('#datasets').innerHTML = '';
      $('#datasetColors').innerHTML = '';
      $('#hasHeader').checked = true;
      $('#delimiter').value = 'auto';
      $('#chartType').value = 'line';
      updateVisibilityByType();
      const ctx = document.getElementById('chart').getContext('2d');
      if (chart) chart.destroy();
      chart = new Chart