Update public/index2.html, public/data/pins.csv

public/data/pins.csv

 lat,lng,name,color,marker_type
-48.773330,9.181970,Muhammad's first study area,#0000ff,type1
+48.773330,9.181970,Muhammad's first study area,#0000ff,muhammad
 48.780000,9.175000,Another study area,#ff0000,type2

public/index2.html

@@ -33,38 +33,38 @@
 
         // Define custom icons for different marker types
         const icons = {
-            type1: L.icon({
+            muhammad: L.icon({
                 iconUrl: 'https://transfer.hft-stuttgart.de/gitlab/hire-promotionskolleg-team/study-areas-maps/-/raw/master/public/images/muhammad.png',
                 iconSize: [32, 32],
                 iconAnchor: [16, 32],
                 popupAnchor: [0, -32]
             }),
             type2: L.icon({
-                iconUrl: 'images/marker-type2.png',
+                iconUrl: 'https://transfer.hft-stuttgart.de/gitlab/hire-promotionskolleg-team/study-areas-maps/-/raw/master/public/images/muhammad.png',
                 iconSize: [32, 32],
                 iconAnchor: [16, 32],
                 popupAnchor: [0, -32]
             }),
             type3: L.icon({
-                iconUrl: 'images/marker-type3.png',
+                iconUrl: 'https://transfer.hft-stuttgart.de/gitlab/hire-promotionskolleg-team/study-areas-maps/-/raw/master/public/images/muhammad.png',
                 iconSize: [32, 32],
                 iconAnchor: [16, 32],
                 popupAnchor: [0, -32]
             }),
             type4: L.icon({
-                iconUrl: 'images/marker-type4.png',
+                iconUrl: 'https://transfer.hft-stuttgart.de/gitlab/hire-promotionskolleg-team/study-areas-maps/-/raw/master/public/images/muhammad.png',
                 iconSize: [32, 32],
                 iconAnchor: [16, 32],
                 popupAnchor: [0, -32]
             }),
             type5: L.icon({
-                iconUrl: 'images/marker-type5.png',
+                iconUrl: 'https://transfer.hft-stuttgart.de/gitlab/hire-promotionskolleg-team/study-areas-maps/-/raw/master/public/images/muhammad.png',
                 iconSize: [32, 32],
                 iconAnchor: [16, 32],
                 popupAnchor: [0, -32]
             }),
             type6: L.icon({
-                iconUrl: 'images/marker-type6.png',
+                iconUrl: 'https://transfer.hft-stuttgart.de/gitlab/hire-promotionskolleg-team/study-areas-maps/-/raw/master/public/images/muhammad.png',
                 iconSize: [32, 32],
                 iconAnchor: [16, 32],
                 popupAnchor: [0, -32]