diff --git a/people/static/js/map.js b/people/static/js/map.js
index 5295456..78eda6a 100644
--- a/people/static/js/map.js
+++ b/people/static/js/map.js
@@ -1,14 +1,6 @@
-const marker_main_alpha_never = 1.0;
-const marker_main_alpha_future = 1.0;
-const marker_main_alpha = 1.0;
-
-const marker_main_colour_never = 'grey';
-const marker_main_colour_future = 'white';
-
+const marker_fill_alpha = 1.0;
 const marker_edge_colour = 'white';
-const marker_edge_colour_never = 'white';
-const marker_edge_colour_future = 'black';
-
+const marker_fill_colour =  'gray';
 
 // Size of the arrow markers used on the map
 const marker_scale = 9;
@@ -22,22 +14,6 @@ const settings = {
     zoom: 5
 }
 
-// const data = [
-//     {lat: 0, lng: 0, name: 'a'},
-//     {lat: 1, lng: 1, name: 'b'},
-//     {lat: 2, lng: 2, name: 'c'},
-// ]
-
-
-
-// Pull settings from the settings var
-// const time_after = filters.time_after;
-// const time_before = filters.time_before;
-// Set up a colour scale that goes from blue to red via yellow, over time_limit days
-// const visitedColour = d3.scaleSequential(d3.interpolateRdYlBu)
-//     .domain([filters.time_after, filters.time_before]);
-
-
 // The function called when Google Maps starts up
 function initMap() {
     const centre_latlng = new google.maps.LatLng(0, 0);
@@ -46,31 +22,30 @@ function initMap() {
         document.getElementById('map'), { zoom: settings.zoom, center: centre_latlng });
 
     // For each data entry in the json...
-    for (var i = 0; i < data.length; i++) {
+    for (const pin_data of data) {
         // Get the lat-long position from the data
-        var lat_lng = new google.maps.LatLng(data[i].lat, data[i].lng);
+        const lat_lng = new google.maps.LatLng(pin_data.lat, pin_data.lng);
 
         // Generate a new marker
-        var marker = new google.maps.Marker({
-            position: lat_lng, map: map,
+        const marker = new google.maps.Marker({
+            position: lat_lng,
+            map: map,
             icon: {
                 path: google.maps.SymbolPath.BACKWARD_CLOSED_ARROW,
-                strokeColor: edgeColourByTime(data[i]),
+                strokeColor: marker_edge_colour,
                 strokeWeight: marker_edge_width,
                 strokeOpacity: marker_edge_alpha,
-                fillColor: mainColourByTime(data[i]),
-                fillOpacity: alphaByTime(data[i]),
+                fillColor: marker_fill_colour,
+                fillOpacity: marker_fill_alpha,
                 scale: marker_scale,
                 labelOrigin: new google.maps.Point(0, -marker_label_offset)
             },
-            label: (data[i].type === 'school' ? '🎓' : '')
         });
 
         // Build the info window content to tell the user the last time it was visited.
         marker.info = new google.maps.InfoWindow({
             content: "<div id='content'>" +
-                "<h3><a href=" + data[i].url + ">" + data[i].name.replace('&apos;', "'") + "</a></h3>" +
-                (data[i].hasOwnProperty('lastvisit') ? "<p>Last visited " + data[i].lastvisit + "</p>" : "<p>Never visited</p>") +
+                "<h3><a href=" + pin_data.url + ">" + pin_data.name.replace('&apos;', "'") + "</a></h3>" +
                 "</div>"
         });
 
@@ -88,40 +63,3 @@ function initMap() {
     // Set the last info window to null
     var last_info = null;
 }
-
-
-function mainColourByTime(d) {
-    if (!d.hasOwnProperty('time')) {
-        return marker_main_colour_never;
-    } else if (d.time > time_after) {
-        return visitedColour(time_after);
-    } else if (d.time < time_before) {
-        return marker_main_colour_future;
-    } else {
-        return visitedColour(d.time);
-    }
-}
-
-function edgeColourByTime(d) {
-    if (!d.hasOwnProperty('time')) {
-        return marker_edge_colour_never;
-    } else if (d.time > time_after) {
-        return marker_edge_colour;
-    } else if (d.time < time_before) {
-        return marker_edge_colour_future;
-    } else {
-        return marker_edge_colour;
-    }
-}
-
-function alphaByTime(d) {
-    if (!d.hasOwnProperty('time')) {
-        return marker_main_alpha_never;
-    } else if (d.time > time_after) {
-        return marker_main_alpha;
-    } else if (d.time < time_before) {
-        return marker_main_alpha_future;
-    } else {
-        return marker_main_alpha;
-    }
-}