Changing Background Color of Selected Row Header (Scheduler)

onEventMoving: (args) => {
  const dp = this.scheduler.control;
  this.previousResourceId = args.e.data.resource;

  const empId = args.e.data.resource.split('-')[0];
  this.previousResource = empId.toString();

  let Json: any = {
    comP_ID: this.companyMasterId,
    locid: this.locationMasterId,
    dept_ID: this.selectedDept,
    drP_RUN_SKILL_ID: args.e.data.drP_RUN_SKILL_ITEM_ID,
  };

  this.databaseHelperServiceProxy.getEmployeeSelectedSkills(Json).subscribe((data) => {
    if (data && data.length > 0 && data[0].emlpoyeeWithSkill) {
      this.config.resources.forEach((resource) => {
        if (resource.id === 'UNCOVERED') {
          return;
        } else {
          var EmpId = resource.id.toString().split('-')[0];
        }

        data[0].emlpoyeeWithSkill.forEach((skillId) => {
          if (EmpId === skillId.emp_ID) {
            var row = dp.rows.find(resource.id);
            if (row != null) {
              dp.rows.selection.add(row);
            }
          }
        });
      });
    }
  });
},

I have a function that adds rows to the selection in the Scheduler, which currently highlights them with a gray color. I want to change the highlight color of the selected rows. How can I do that?