CheckCell.WorkbookState.ResetTool C# (CSharp) Method

        public void ResetTool()
        {
            RestoreOutputColors();
            _known_good.Clear();
            SetTool(active: false);
        }

 private void StartOverButton_Click(object sender, RibbonControlEventArgs e)
 {
     current_workbook.ResetTool();
     SetUIState(current_workbook);
 }