diff --git a/www/graph.css b/www/graph.css
index c4cad0f..cfe9a63 100644
--- a/www/graph.css
+++ b/www/graph.css
@@ -7,12 +7,12 @@
 
 :root {
     --color1: #9741f9;
-    --color2: #f3722c;
-    --color3: #f8961e;
+    --color2: #fd7159;
+    --color3: #4c9be6;
     /* --color4: #f9844a; */
-    --color5: #f9c74f;
-    --color6: #90be6d;
-    --color7: #43aa8b;
+    --color5: #24C3B2;
+    --color6: #7bc748;
+    --color7: #e4a02b;
     --color8: #4d908e;
     --color9: #577590;
     --color10: #277da1;
@@ -65,28 +65,36 @@ svg .links line, svg .links path {
     /* stroke: #f3722c; */
     /* stroke: #9df32c; */
     stroke: var(--link-color);
-    stroke-width: calc(10px / var(--zoom));
+    stroke-width: calc(14px / var(--zoom));
     fill: none;
     /* transition: stroke-width 1s; */
     cursor: pointer;
+    stroke-linecap: round;
+}
+
+svg .selectedNode .links line, svg .selectedNode .links path {
+    opacity: .3;
 }
 
 svg .links line.hover, svg .links path.hover {
     stroke: var(--link-hover-color) !important;
+    opacity: 1;
     /* stroke-width: 12; */
-    marker-end: url(#arrowHeadSelected) !important;
+    /* marker-end: url(#arrowHeadSelected) !important; */
 }
 
 svg .links .linkedHover path{
     stroke: var(--link-hover-related-color);
+    opacity: 1;
     stroke-width:  calc(12px / var(--zoom));
-    marker-end: url(#arrowHeadSelectedRelated);
+    /* marker-end: url(#arrowHeadSelectedRelated); */
 }
 
 svg .links .linkedSelected path{
     stroke: var(--link-hover-related-color);
+    opacity: 1;
     stroke-width:  calc(12px / var(--zoom));
-    marker-end: url(#arrowHeadSelectedRelated);
+    /* marker-end: url(#arrowHeadSelectedRelated); */
 }
 
 /* svg.zoomed .links line, svg.zoomed .links path {
@@ -165,7 +173,7 @@ svg #header text#subtitle {
     /* font-size: 16pt; */
     /*Set this in JS*/
     transition: opacity 1s;
-    fill: #5d5d5f; /*also when hovering node*/
+    fill: black; /*also when hovering node*/
     opacity: 1;
     /* pointer-events: none; */
     /*prevent mouse glitches*/
@@ -178,6 +186,12 @@ svg #header text#subtitle {
     pointer-events: none;
 }
 
+.selectedNode .node:not(.linkedSelected):not(.selected) text.nodeTitle{
+    /* used to be shown on hover, but disabled now that we have a tooltip */
+    opacity: 0;
+    pointer-events: none;
+}
+
 svg.zoomed .node text.nodeTitle {
     /* font-size: 6pt; */
 }
@@ -188,6 +202,12 @@ svg.zoomed.zoomed2 .node text.nodeTitle {
 
 .node circle, .node path {
     fill: lightgray;
+    transform: scale(calc(1.5 / var(--zoom-sqrt)));
+}
+
+
+#filters .node circle,  #filters .node path {
+    transform: none;
 }
 
 /* Whenever a connected link is hovered */
@@ -197,6 +217,9 @@ svg.zoomed.zoomed2 .node text.nodeTitle {
     stroke: var(--hover-related-color);
     stroke-width: 2px;
 }
+.node.linkHover text, .node.linkedHover text{
+    fill: var(--hover-related-color) !important;
+}
 .selectedNode .node:not(.linkedSelected) path {
     fill: lightgray !important;
     /* same as linkHover/linkedHover but without border */
@@ -211,6 +234,11 @@ svg.zoomed.zoomed2 .node text.nodeTitle {
     stroke: var(--hover-color);
     stroke-width: 2px;
 }
+
+
+.node:hover text, .node.selected text {
+    fill: var(--hover-color) !important;
+}
 /* 
 .node:hover text {
     transition: none;
@@ -254,7 +282,8 @@ svg.zoomed.zoomed2 .node text.nodeTitle {
 
 .node.Institution circle, .node.Institution path {
     /* fill: lightcoral; */
-    fill: #11F999;
+    /* fill: #11F999; */
+    fill: darkgray;
 }
 
 .node.Dataset circle, .node.Dataset path {
@@ -266,26 +295,26 @@ svg.zoomed.zoomed2 .node text.nodeTitle {
     opacity: 1 !important;
 }
 
-.node.Institution.Institution-company path{
-    fill: #45F68A;
+.node.Institution.Institution-company path, .node.Institution.Institution-company text{
+    fill: var(--color2);
 }
-.node.Institution.Institution-government path{
-    fill: #60F37B;
+.node.Institution.Institution-government path, .node.Institution.Institution-government text{
+    fill: var(--color3);
 }
 .node.Institution.Institution-local-government path{
     fill: #75F06D;
 }
-.node.Institution.Institution-law-enforcement path{
-    fill: #87EC60;
+.node.Institution.Institution-law-enforcement path, .node.Institution.Institution-law-enforcement text{
+    fill: var(--color7);
 }
-.node.Institution.Institution-ngo path{
-    fill: #97E853;
+.node.Institution.Institution-ngo path, .node.Institution.Institution-ngo text{
+    fill: var(--color5);
 }
 .node.Institution.Institution-university path{
     fill: #A6E447;
 }
-.node.Institution.Institution-research path{
-    fill: #B4E03C;
+.node.Institution.Institution-research path, .node.Institution.Institution-research text{
+    fill: var(--color6);
 }
 .node.Institution.Institution-project path{
     fill: #C1DB31;
@@ -419,6 +448,7 @@ header {
     background: white;
     padding: 10px;
     border-top-left-radius: 5px;
+    min-width: 300px;
 }
 
 h1 {
@@ -443,7 +473,7 @@ p.subtitle {
 #filters label {
     cursor: pointer;
     display: block;
-    padding: 10px;
+    padding: 5px 10px;
 }
 
 #filters label svg {
@@ -474,6 +504,43 @@ p.subtitle {
     /* box-shadow: inset 0 0 5px black; */
 }
 
+#filters .institution_types{
+    margin-left: 30px;
+}
+
+#filter-items.filter-institution .institution_types{
+    /* display:none */
+    color: darkgray;
+    pointer-events: none;
+}
+
+#filter-items.filter-institution .institution_types span{
+    text-decoration: line-through;
+}
+
+#filters h3{
+    cursor: pointer;
+}
+#filters h3::before{
+    display: inline-block;
+    float: left;
+    content: '\fe3f'; /*⬆*/
+    transform: rotate(180deg);
+    transition: transform .8s;
+}
+#filters.hide h3::before{
+    transform: rotate(0deg);
+}
+
+#filter-items{
+    max-height: 1000px;
+    transition: max-height .8s;
+}
+#filters.hide #filter-items{
+    max-height: 0px;
+}
+
+
 #map .borders {
     stroke-width: 6px;
     stroke: rgb(221, 210, 210);
@@ -489,4 +556,3 @@ p.subtitle {
 #alluvial .flow_label text {
     font-size: 30;
 }
-
diff --git a/www/graph.js b/www/graph.js
index e025dd0..34bc7c1 100644
--- a/www/graph.js
+++ b/www/graph.js
@@ -6,7 +6,7 @@ const CONFIG = {
     'nodeRadius': 5,
     'nodeRepositionPadding': 12,
     'baseUrl': 'https://www.securityvision.io/wiki/index.php/',
-    'dataUrl': 'result2.json',
+    'dataUrl': 'result3.json',
     'preSimulate': false, // run simulation before starting, so we don't start with lines jumping around
     'labels': {
         'rotate': true,
@@ -17,6 +17,16 @@ const CONFIG = {
         'lonMax': 35,
         'center': [11, 47],
     },
+    "institution_map": {
+        "Local Government": "Government",
+        "Regional Government": "Government",
+        "International Organization": "Government",
+        "Watchdog": "Government",
+        // "NGO": "Organisation",
+        "Foundation": "NGO",
+        "University": "Research",
+        "Expert Group": "Research",
+    },
     "filters": {
         "Institution": {
             "label": "Institution",
@@ -29,23 +39,11 @@ const CONFIG = {
         // [12:08, 07-05-2021] Francesco Ragazzi: NGO, Foundation can be grouped
         // [12:08, 07-05-2021] Francesco Ragazzi: University, Research, Expert group can be grouped
         // [12:08, 07-05-2021] Francesco Ragazzi: Watchdog and can also be grouped with government
-        "Law Enforcement": {
-            // "label": "Institution",
-            "type": "institution_types",
-        },
-        "NGO": {
-            // "label": "Institution",
-            "type": "institution_types",
-        },
         "Government": {
             // "label": "Institution",
             "type": "institution_types",
         },
-        "Regional Government": {
-            // "label": "Institution",
-            "type": "institution_types",
-        },
-        "Local Government": {
+        "Law Enforcement": {
             // "label": "Institution",
             "type": "institution_types",
         },
@@ -53,38 +51,51 @@ const CONFIG = {
             // "label": "Institution",
             "type": "institution_types",
         },
-        "Foundation": {
-            // "label": "Institution",
-            "type": "institution_types",
-        },
-        "University": {
+        "NGO": {
             // "label": "Institution",
             "type": "institution_types",
         },
+        
+        // "Regional Government": {
+        //     // "label": "Institution",
+        //     "type": "institution_types",
+        // },
+        // "Local Government": {
+        //     // "label": "Institution",
+        //     "type": "institution_types",
+        // },
+        // "Foundation": {
+        //     // "label": "Institution",
+        //     "type": "institution_types",
+        // },
+        // "University": {
+        //     // "label": "Institution",
+        //     "type": "institution_types",
+        // },
         "Research": {
             // "label": "Institution",
             "type": "institution_types",
         },
-        "Labour Union": {
-            // "label": "Institution",
-            "type": "institution_types",
-        },
-        "Watchdog": {
-            // "label": "Institution",
-            "type": "institution_types",
-        },
-        "Expert Group": {
-            // "label": "Institution",
-            "type": "institution_types",
-        },
-        "International Organization": {
-            // "label": "Institution",
-            "type": "institution_types",
-        },
-        "Art Project": {
-            // "label": "Institution",
-            "type": "institution_types",
-        },
+        // "Labour Union": {
+        //     // "label": "Institution",
+        //     "type": "institution_types",
+        // },
+        // "Watchdog": {
+        //     // "label": "Institution",
+        //     "type": "institution_types",
+        // },
+        // "Expert Group": {
+        //     // "label": "Institution",
+        //     "type": "institution_types",
+        // },
+        // "International Organization": {
+        //     // "label": "Institution",
+        //     "type": "institution_types",
+        // },
+        // "Art Project": {
+        //     // "label": "Institution",
+        //     "type": "institution_types",
+        // },
         "Deployments": {
             "label": "Deployment",
             "type": "categories",
@@ -173,7 +184,7 @@ const CONFIG = {
     },
     "zoom": {
         "scale_min": .2,
-        "scale_max": 20,
+        "scale_max": 10,
     },
 
     "cases": [
@@ -332,6 +343,7 @@ function getCategories(obj) {
             cats.push(getInstitutionClass(type.fulltext));
         });
     }
+    // return 
     return cats;
 }
 function getInstitutionClass(name) {
@@ -374,8 +386,16 @@ class NodeMap {
         this.render();
     }
 
+    // calculate which text labels overlap.
     calculateLabels() {
-        const els = document.querySelectorAll('.node text')
+        let els;
+        if(this.selectedNode === null) {
+            els = document.querySelectorAll('.node text')
+        } else {
+            // only related texts are visible
+            // so only these need to be considered
+            els = document.querySelectorAll('.node.linkedSelected text, .node.selected text')
+        }
         for (let i = 0; i < els.length; i++) {
             const el = els[i];
             let overlapping = false;
@@ -507,6 +527,7 @@ class NodeMap {
                     clearTimeout(zoomTimeout)
                 }
                 document.querySelector(':root').style.setProperty('--zoom', evt.transform.k);
+                document.querySelector(':root').style.setProperty('--zoom-sqrt', Math.pow(evt.transform.k, 1/3));
                 zoomTimeout = setTimeout(() => {
                     this.g_nodes.attr('style', `font-size:${22000 / this.height / evt.transform.k}pt`)
                     setTimeout(() => {
@@ -846,6 +867,7 @@ class NodeMap {
         // see also: https://www.createwithdata.com/enter-exit-with-d3-join/
         this.node = this.node.data(this.graph.nodes, d => d.id)
             .join((enter) => {
+                // let group = enter.insert("g", ":first-child")
                 let group = enter.append("g")
                     .attr("class", getClasses)
                     .attr("id", (n) => getIdForTitle(n.fulltext));
@@ -980,7 +1002,7 @@ class NodeMap {
                         .attr("class", (l) => "link " + slugify(l.name))
                         .attr("id", getLinkId);
                     group.append("path")
-                        .attr("marker-end", "url(#arrowHead)")
+                        // .attr("marker-end", "url(#arrowHead)")
                         .attr('id', (d, i) => 'linkpath_' + i)
                         .on("mouseover", (ev, link) => {
                             d3.select(ev.target).classed('hover', true);
@@ -1166,6 +1188,7 @@ class NodeMap {
         }
     }
 
+    // zoom & translate the graph to fit the provided nodes
     zoomFit(nodes, paddingPercent = 0.8, transitionDuration = 2000) {
         // var bounds = root.node().getBBox();
         const x0 = Math.min(...nodes.map(n => n.x - CONFIG.nodeRadius));
@@ -1363,6 +1386,17 @@ JsonToGraph = function (data) {
             i++;
             let node = data.results[node_id];
             node.id = getIdForTitle(node.fulltext); //node_id;
+            // group institution types
+            if(node.printouts['Institution Type'].length ){
+                for (let idx = 0; idx < node.printouts['Institution Type'].length; idx++) {
+                    const type = node.printouts['Institution Type'][idx];
+                    if(CONFIG.institution_map.hasOwnProperty(type.fulltext)){
+                       node.printouts['Institution Type'][idx].fulltext = CONFIG.institution_map[type.fulltext];
+                    }                
+                }
+                // node.printouts['Institution Type'] = CONFIG.institution_map[node.printouts['Institution Type']];
+            }
+
             nodes.push(node);
             // console.log(node_id, node);
 
@@ -1636,8 +1670,6 @@ class Store {
             'institution_types': [],
         }
 
-
-
         this.filter();
 
     }
@@ -1747,15 +1779,17 @@ class Store {
         Object.keys(CONFIG.filters).forEach(f => {
             const settings = CONFIG.filters[f];
 
-            if (settings.type == 'institution_types')
-                // TODO; For now, skip
-                return;
+            // if (settings.type == 'institution_types')
+            //     // TODO; For now, skip
+            //     return;
 
             let categories = [f];
             if (settings.type == 'institution_types')
                 categories = ['Institution', getInstitutionClass(f)];
 
-            let labelEl = document.createElement('label')
+            let labelEl = document.createElement('label');
+            labelEl.setAttribute('id', 'filter-'+slugify(f));
+            labelEl.classList.add(settings.type)
             let inputEl = document.createElement('input')
             let textEl = document.createElement('span');
             let svg = d3.select(labelEl).append('svg')
@@ -1765,7 +1799,7 @@ class Store {
                 .append('path')
                 .attr('d', getSymbolForCategories(categories)());
             inputEl.type = "checkbox";
-            textEl.innerText = f;
+            textEl.innerText = settings.hasOwnProperty('label') ? settings.label : f;
             labelEl.appendChild(inputEl);
             labelEl.appendChild(textEl);
 
@@ -1780,10 +1814,12 @@ class Store {
                             this.filters[settings.type].splice(i, 1);
                         }
                     });
+                    this.root.classList.remove('filter-'+slugify(f))
                 } else {
                     if (!this.filters[settings.type].includes(f)) {
                         this.filters[settings.type].push(f);
                     }
+                    this.root.classList.add('filter-'+slugify(f))
                 }
                 this.filter();
                 this.update();
@@ -1808,7 +1844,7 @@ Promise.all([fetch(req_data), fetch(req_world)])
     })
     .then(([data, world]) => {
         var graph = JsonToGraph(data);
-        var store = new Store(graph, '#filters');
+        var store = new Store(graph, '#filter-items');
 
         mapGraph.setWorld(world);
         mapGraph.setStore(store);
diff --git a/www/index.html b/www/index.html
index c5a2db1..832dac8 100644
--- a/www/index.html
+++ b/www/index.html
@@ -9,6 +9,7 @@
 <body>
 
     <div id='tooltip'></div>
+    <!-- <div id='closeSelection'>&times;</div> -->
     <div id='map'></div>
     <!-- <div id='alluvial'></div> -->
 
@@ -18,7 +19,8 @@
 
 
         <aside id="filters">
-            <h3>Filter</h3>
+            <h3 onclick="this.parentNode.classList.toggle('hide');">Filter</h3>
+            <div id="filter-items"></div>
         </aside>
 
     </header>