Change the style of markers on the map HTML [duplicate]

I want to chagne the style of markers on the map it’s ugly red i want to change it to a dot or something

function addPoint(location) {

    if (points.length < 4) {
      // Ajouter un marqueur à l'emplacement cliqué
      const marker = new google.maps.Marker({
        position: location,
        map: map,
        draggable: true,
        title: 'Déplacez le marqueur pour choisir un emplacement'
        
      });