Read Custom Attributes from Property Drawer

I'm trying to get a PropertyDrawer to change the way its target type is drawn using custom attributes, but I can't figure out a way to read a field's attribute from its propertyDrawer.

I did find something about making my attribute inherit PropertyAttribute, and then recovering it from PropertyDrawer.Attribute, but this variable is always null.

 using UnityEditor;
 
 // Field Type
 [System.Serializable] public sealed class jauge {}
 
 // Custom Attribute
 [System.AttributeUsage( System.AttributeTargets.Field )]
 public class jaugeDisplayOptions : PropertyAttribute {
     public bool showContent, showSlider;
     public jaugeDisplayOptions (bool showContent = false, bool showSlider = false){
         this.showSlider = showSlider;
         this.showContent = showContent;
     }
 }
 
 // Test Class
 public class jaugeDemo : MonoBehaviour {
     [jaugeDisplayOptions (showContent:false, showSlider:false)] public jauge jauge1;
     [jaugeDisplayOptions (showContent:false, showSlider:true) ] public jauge jauge2;
     [jaugeDisplayOptions (showContent:true,  showSlider:true) ] public jauge jauge3;
     [jaugeDisplayOptions (showContent:true,  showSlider:false)] public jauge jauge4;
 }
 
 // Property Drawer
 [CustomPropertyDrawer(typeof (jauge))]
 public class jaugeEditor : PropertyDrawer {
     public override void OnGUI(Rect position, SerializedProperty property, GUIContent label){
         Debug.Log (this.attribute); // Null all the time
     }
 }