diff --git a/code/debugging.js b/code/debugging.js
index f688e292..af0bf775 100644
--- a/code/debugging.js
+++ b/code/debugging.js
@@ -5,9 +5,9 @@
 window.debug = function() {}
 
 window.debug.renderDetails = function() {
-  console.log('portals: ' + Object.keys(portals).length);
-  console.log('links:   ' + Object.keys(links).length);
-  console.log('fields:  ' + Object.keys(fields).length);
+  console.log('portals: ' + window.portalsCount);
+  console.log('links:   ' + window.linksCount);
+  console.log('fields:  ' + window.fieldsCount);
 }
 
 window.debug.printStackTrace = function() {
diff --git a/code/map_data.js b/code/map_data.js
index a709fdf6..de643823 100644
--- a/code/map_data.js
+++ b/code/map_data.js
@@ -572,7 +572,7 @@ window.getMarker = function(ent, portalLevel, latlng, team) {
 
 // renders a portal on the map from the given entity
 window.renderPortal = function(ent) {
-  if(Object.keys(portals).length >= MAX_DRAWN_PORTALS && ent[0] !== selectedPortal)
+  if(window.portalsCount >= MAX_DRAWN_PORTALS && ent[0] !== selectedPortal)
     return removeByGuid(ent[0]);
 
   // hide low level portals on low zooms
@@ -633,6 +633,7 @@ window.renderPortal = function(ent) {
         removeByGuid(portalResonatorGuid(portalGuid, i));
     }
     delete window.portals[portalGuid];
+    window.portalsCount --;
     if(window.selectedPortal === portalGuid) {
       window.unselectOldPortal();
     }
@@ -642,6 +643,7 @@ window.renderPortal = function(ent) {
     // enable for debugging
     if(window.portals[this.options.guid]) throw('duplicate portal detected');
     window.portals[this.options.guid] = this;
+    window.portalsCount ++;
 
     window.renderResonators(this.options.guid, this.options.details, this);
     // handles the case where a selected portal gets removed from the
@@ -781,7 +783,7 @@ window.resonatorsSetStyle = function(portalGuid, resoStyle, lineStyle) {
 
 // renders a link on the map from the given entity
 window.renderLink = function(ent) {
-  if(Object.keys(links).length >= MAX_DRAWN_LINKS)
+  if(window.linksCount >= MAX_DRAWN_LINKS)
     return removeByGuid(ent[0]);
 
   // some links are constructed from portal linkedEdges data. These have no valid 'creator' data.
@@ -823,11 +825,15 @@ window.renderLink = function(ent) {
 
   if(!getPaddedBounds().intersects(poly.getBounds())) return;
 
-  poly.on('remove', function() { delete window.links[this.options.guid]; });
+  poly.on('remove', function() {
+    delete window.links[this.options.guid]; 
+    window.linksCount--;
+  });
   poly.on('add',    function() {
     // enable for debugging
     if(window.links[this.options.guid]) throw('duplicate link detected');
     window.links[this.options.guid] = this;
+    window.linksCount++;
     this.bringToBack();
   });
   poly.addTo(linksLayer);
@@ -835,7 +841,7 @@ window.renderLink = function(ent) {
 
 // renders a field on the map from a given entity
 window.renderField = function(ent) {
-  if(Object.keys(fields).length >= MAX_DRAWN_FIELDS)
+  if(window.fieldsCount >= MAX_DRAWN_FIELDS)
     return window.removeByGuid(ent[0]);
 
   var old = findEntityInLeaflet(fieldsLayer, window.fields, ent[0]);
@@ -921,11 +927,15 @@ window.renderField = function(ent) {
   // events, thus this listener will be attached to the field. It
   // doesn’t matter to which element these are bound since Leaflet
   // will add/remove all elements of the LayerGroup at once.
-  poly.on('remove', function() { delete window.fields[this.options.guid]; });
+  poly.on('remove', function() {
+    delete window.fields[this.options.guid];
+    window.fieldsCount--;
+  });
   poly.on('add',    function() {
     // enable for debugging
     if(window.fields[this.options.guid]) console.warn('duplicate field detected');
     window.fields[this.options.guid] = f;
+    window.fieldsCount++;
     this.bringToBack();
   });
   f.addTo(fieldsLayer);
diff --git a/code/portal_render_limit.js b/code/portal_render_limit.js
index 98a31095..65f42ddd 100644
--- a/code/portal_render_limit.js
+++ b/code/portal_render_limit.js
@@ -41,6 +41,7 @@ window.portalRenderLimit.previousMinLevel = -1;
 window.portalRenderLimit.previousZoomLevel = null;
 window.portalRenderLimit.newPortalsPerLevel = new Array(MAX_PORTAL_LEVEL + 1);
 window.portalRenderLimit.portalsLowerThanPrevMinLv = new Array(MAX_PORTAL_LEVEL + 1);
+window.portalRenderLimit.portalsLowerThanPrevMinLvCnt = new Array(MAX_PORTAL_LEVEL + 1);
 
 window.portalRenderLimit.init = function () {
   var currentZoomLevel = map.getZoom();
@@ -72,6 +73,7 @@ window.portalRenderLimit.resetCounting = function() {
 window.portalRenderLimit.resetPortalsLowerThanPrevMinLv = function() {
   for(var i = 0; i <= MAX_PORTAL_LEVEL; i++) {
     portalRenderLimit.portalsLowerThanPrevMinLv[i] = {};
+    portalRenderLimit.portalsLowerThanPrevMinLvCnt[i] = 0;
   }
 }
 
@@ -125,6 +127,7 @@ window.portalRenderLimit.splitLowLevelPortals = function(portals) {
 
     if(!portalOnMap && portalLevel < portalRenderLimit.previousMinLevel) {
       portalRenderLimit.portalsLowerThanPrevMinLv[portalLevel][guid] = portal;
+      portalRenderLimit.portalsLowerThanPrevMinLvCnt[portalLevel]++;
     } else {
       resultPortals[guid] = portal;
     }
@@ -158,7 +161,7 @@ window.portalRenderLimit.setMinLevel = function() {
   // Find the min portal level under render limit
   while(newMinLevel > 0) {
     var oldPortalCount = layerGroupLength(portalsLayers[newMinLevel - 1]);
-    var storedPortalCount = Object.keys(portalRenderLimit.portalsLowerThanPrevMinLv[newMinLevel - 1]).length;
+    var storedPortalCount = portalRenderLimit.portalsLowerThanPrevMinLvCnt[newMinLevel - 1];
     var newPortalCount = Math.max(storedPortalCount, portalRenderLimit.newPortalsPerLevel[newMinLevel - 1]);
 
     totalPortalsCount += oldPortalCount + newPortalCount;
diff --git a/code/utils_misc.js b/code/utils_misc.js
index b40fba62..4e118b78 100644
--- a/code/utils_misc.js
+++ b/code/utils_misc.js
@@ -245,9 +245,9 @@ window.getPaddedBounds = function() {
 // cally detect if the render limit will be hit.
 window.renderLimitReached = function(ratio) {
   ratio = ratio || 1;
-  if(Object.keys(portals).length*ratio >= MAX_DRAWN_PORTALS) return true;
-  if(Object.keys(links).length*ratio >= MAX_DRAWN_LINKS) return true;
-  if(Object.keys(fields).length*ratio >= MAX_DRAWN_FIELDS) return true;
+  if(window.portalsCount*ratio >= MAX_DRAWN_PORTALS) return true;
+  if(window.linksCount*ratio >= MAX_DRAWN_LINKS) return true;
+  if(window.fieldsCount*ratio >= MAX_DRAWN_FIELDS) return true;
   var param = { 'reached': false };
   window.runHooks('checkRenderLimit', param);
   return param.reached;
diff --git a/main.js b/main.js
index 90d7bc05..e783d772 100644
--- a/main.js
+++ b/main.js
@@ -250,8 +250,11 @@ var portalsLayers, linksLayer, fieldsLayer;
 // automatically kept in sync with the items on *sLayer, so never ever
 // write to them.
 window.portals = {};
+window.portalsCount = 0;
 window.links = {};
+window.linksCount = 0;
 window.fields = {};
+window.fieldsCount = 0;
 window.resonators = {};
 
 // contain current status(on/off) of overlay layerGroups.
diff --git a/plugins/draw-tools.user.js b/plugins/draw-tools.user.js
index e26b1131..75bb0138 100644
--- a/plugins/draw-tools.user.js
+++ b/plugins/draw-tools.user.js
@@ -2,7 +2,7 @@
 // @id             iitc-plugin-draw-tools@breunigs
 // @name           IITC plugin: draw tools
 // @category       Layer
-// @version        0.4.1.@@DATETIMEVERSION@@
+// @version        0.5.0.@@DATETIMEVERSION@@
 // @namespace      https://github.com/jonatkins/ingress-intel-total-conversion
 // @updateURL      @@UPDATEURL@@
 // @downloadURL    @@DOWNLOADURL@@
@@ -32,6 +32,33 @@ window.plugin.drawTools.loadExternals = function() {
   $('head').append('<style>@@INCLUDESTRING:external/leaflet.draw.css@@</style>');
 }
 
+window.plugin.drawTools.setOptions = function() {
+  window.plugin.drawTools.lineOptions = {
+    stroke: true,
+    color: '#f06eaa',
+    weight: 4,
+    opacity: 0.5,
+    fill: false,
+    clickable: true
+  };
+
+  window.plugin.drawTools.polygonOptions = {
+    stroke: true,
+    color: '#f06eaa',
+    weight: 4,
+    opacity: 0.5,
+    fill: true,
+    fillColor: null,
+    fillOpacity: 0.2,
+    clickable: true
+  };
+
+  window.plugin.drawTools.markerOptions = {
+    icon: new L.Icon.Default(),
+    zIndexOffset: 2000
+  };
+
+}
 
 
 // renders the draw control buttons in the top left corner
@@ -45,7 +72,8 @@ window.plugin.drawTools.addDrawControl = function() {
           + 'define the start of the polygon. Continue clicking\n'
           + 'to draw the line you want. Click the first or last\n'
           + 'point of the line (a small white rectangle) to\n'
-          + 'finish. Double clicking also works.'
+          + 'finish. Double clicking also works.',
+        shapeOptions: window.plugin.drawTools.polygonOptions,
       },
 
       polyline: {
@@ -54,7 +82,8 @@ window.plugin.drawTools.addDrawControl = function() {
           + 'define the start of the line. Continue clicking\n'
           + 'to draw the line you want. Click the <b>last</b>\n'
           + 'point of the line (a small white rectangle) to\n'
-          + 'finish. Double clicking also works.'
+          + 'finish. Double clicking also works.',
+        shapeOptions: window.plugin.drawTools.lineOptions,
       },
 
       circle: {
@@ -62,13 +91,15 @@ window.plugin.drawTools.addDrawControl = function() {
           + 'Click on the button, then click-AND-HOLD on the\n'
           + 'map where the circle’s center should be. Move\n'
           + 'the mouse to control the radius. Release the mouse\n'
-          + 'to finish.'
+          + 'to finish.',
+        shapeOptions: window.plugin.drawTools.polygonOptions,
       },
 
       marker: {
         title: 'Add a marker.\n\n'
           + 'Click on the button, then click on the map where\n'
-          + 'you want the marker to appear.'
+          + 'you want the marker to appear.',
+        shapeOptions: window.plugin.drawTools.markerOptions,
       },
 
     },
@@ -114,11 +145,79 @@ window.plugin.drawTools.getSnapLatLng = function(containerPoint) {
 }
 
 
-window.plugin.drawTools.boot = function() {
-  //create a leaflet FeatureGroup to hold drawn items
+window.plugin.drawTools.save = function() {
+  var data = [];
 
+  window.plugin.drawTools.drawnItems.eachLayer( function(layer) {
+    var item = {};
+    if (layer instanceof L.GeodesicCircle || layer instanceof L.Circle) {
+      item.type = 'circle';
+      item.latLng = layer.getLatLng();
+      item.radius = layer.getRadius();
+    } else if (layer instanceof L.GeodesicPolygon || layer instanceof L.Polygon) {
+      item.type = 'polygon';
+      item.latLngs = layer.getLatLngs();
+    } else if (layer instanceof L.GeodesicPolyline || layer instanceof L.Polyline) {
+      item.type = 'polyline';
+      item.latLngs = layer.getLatLngs();
+    } else if (layer instanceof L.Marker) {
+      item.type = 'marker';
+      item.latLng = layer.getLatLng();
+    } else {
+      console.warn('Unknown layer type when saving draw tools layer');
+      return; //.eachLayer 'continue'
+    }
+
+    data.push(item);
+  });
+
+  localStorage['plugin-draw-tools-layer'] = JSON.stringify(data);
+
+  console.log('draw-tools: saved to localStorage');
+}
+
+window.plugin.drawTools.load = function() {
+  var dataStr = localStorage['plugin-draw-tools-layer'];
+  if (dataStr === undefined) return;
+
+  var data = JSON.parse(dataStr);
+  $.each(data, function(index,item) {
+    var layer = null;
+    switch(item.type) {
+      case 'polyline':
+        layer = L.geodesicPolyline(item.latLngs,window.plugin.drawTools.lineOptions);
+        break;
+      case 'polygon':
+        layer = L.geodesicPolygon(item.latLngs,window.plugin.drawTools.polygonOptions);
+        break;
+      case 'circle':
+        layer = L.circle(item.latLng,item.radius,window.plugin.drawTools.polygonOptions);
+        break;
+      case 'marker':
+        layer = L.marker(item.latLng,window.plugin.drawTools.markerOptions)
+        break;
+      default:
+        console.warn('unknown layer type "'+item.type+'" when loading draw tools layer');
+        break;
+    }
+    if (layer) {
+      window.plugin.drawTools.drawnItems.addLayer(layer);
+    }
+
+  });
+
+}
+
+
+window.plugin.drawTools.boot = function() {
+  window.plugin.drawTools.setOptions();
+
+  //create a leaflet FeatureGroup to hold drawn items
   window.plugin.drawTools.drawnItems = new L.FeatureGroup();
 
+  //load any previously saved items
+  plugin.drawTools.load();
+
   //add the draw control - this references the above FeatureGroup for editing purposes
   plugin.drawTools.addDrawControl();
 
@@ -147,8 +246,18 @@ window.plugin.drawTools.boot = function() {
     var type=e.layerType;
     var layer=e.layer;
     window.plugin.drawTools.drawnItems.addLayer(layer);
+    window.plugin.drawTools.save();
   });
 
+  map.on('draw:deleted', function(e) {
+    window.plugin.drawTools.save();
+  });
+
+  map.on('draw:edited', function(e) {
+    window.plugin.drawTools.save();
+  });
+
+
 }
 
 
diff --git a/website/page/home.php b/website/page/home.php
index 126427e5..b6756d0a 100644
--- a/website/page/home.php
+++ b/website/page/home.php
@@ -32,7 +32,7 @@ Important IITC release 0.13.0, to fix enlightened from showing up as the wrong c
  <li>IPAS plugin updated. This had been done earlier on desktop, but not mobile</li>
  </ul>
 <li>Plugins<ul>
- <li>Update mod highlither plugin</li>
+ <li>Update mod highlighter plugin</li>
  <li>Portals list plugin updates</li>
  </ul>
 <li>plus various other tweaks, bug fixes, etc</li>
diff --git a/website/page/news.php b/website/page/news.php
index a43c39c3..9313b184 100644
--- a/website/page/news.php
+++ b/website/page/news.php
@@ -19,7 +19,7 @@ Important IITC release 0.13.0, to fix enlightened from showing up as the wrong c
  <li>IPAS plugin updated. This had been done earlier on desktop, but not mobile</li>
  </ul>
 <li>Plugins<ul>
- <li>Update mod highlither plugin</li>
+ <li>Update mod highlighter plugin</li>
  <li>Portals list plugin updates</li>
  </ul>
 <li>plus various other tweaks, bug fixes, etc</li>