diff --git a/server/index.mjs b/server/index.mjs
index 3ad9cf6..c5e1486 100644
--- a/server/index.mjs
+++ b/server/index.mjs
@@ -474,10 +474,10 @@ function ensureGraphStorage() {
       nodeSizeMultiplier: 1,
       lineSizeMultiplier: 1,
       'collapse-forces': false,
-      centerStrength: 0.5,
-      repelStrength: 10,
-      linkStrength: 1,
-      linkDistance: 250,
+      centerStrength: 0.3,
+      repelStrength: 17,
+      linkStrength: 0.5,
+      linkDistance: 200,
       scale: 1,
       close: false
     };
diff --git a/src/app/graph/graph-settings.types.ts b/src/app/graph/graph-settings.types.ts
index ed70a67..778c033 100644
--- a/src/app/graph/graph-settings.types.ts
+++ b/src/app/graph/graph-settings.types.ts
@@ -70,10 +70,10 @@ export const DEFAULT_GRAPH_CONFIG: GraphConfig = {
   lineSizeMultiplier: 1,
 
   'collapse-forces': false,
-  centerStrength: 0.5,
-  repelStrength: 10,
-  linkStrength: 1,
-  linkDistance: 250,
+  centerStrength: 0.3,
+  repelStrength: 17,
+  linkStrength: 0.5,
+  linkDistance: 200,
 
   scale: 1,
   close: false
diff --git a/src/app/graph/graph.selectors.ts b/src/app/graph/graph.selectors.ts
index 02f079a..ae3afdf 100644
--- a/src/app/graph/graph.selectors.ts
+++ b/src/app/graph/graph.selectors.ts
@@ -7,7 +7,7 @@ import { computed, Signal } from '@angular/core';
 import { GraphData, GraphNode, GraphLink, GraphNodeWithVisuals, GroupLegendItem } from './graph-data.types';
 import { GraphConfig, GraphColorGroup, colorToCss } from './graph-settings.types';
 import { parseGroupQuery, nodeMatchesQuery } from './group-query.parser';
-import { DEFAULT_NODE_COLOR } from './graph.utils';
+import { DEFAULT_NODE_COLOR, DEFAULT_TAG_COLOR, DEFAULT_ATTACHMENT_COLOR } from './graph.utils';
 
 /**
  * Apply text search filter to nodes
@@ -177,7 +177,14 @@ function applyColorGroups(
   nodes.forEach(node => degrees.set(node.id, 0));
   
   return nodes.map(node => {
+    // Set default color based on node type
     let color = DEFAULT_NODE_COLOR;
+    if (isTagNode(node)) {
+      color = DEFAULT_TAG_COLOR;
+    } else if (isAttachmentNode(node)) {
+      color = DEFAULT_ATTACHMENT_COLOR;
+    }
+    
     let groupIndex: number | undefined = undefined;
     
     // Find first matching group (first match wins)
diff --git a/src/app/graph/graph.utils.ts b/src/app/graph/graph.utils.ts
index a39310b..816c45e 100644
--- a/src/app/graph/graph.utils.ts
+++ b/src/app/graph/graph.utils.ts
@@ -26,6 +26,16 @@ export const DEFAULT_GROUP_COLORS = [
  */
 export const DEFAULT_NODE_COLOR = '#3B82F6'; // blue-500
 
+/**
+ * Default tag node color (matching Obsidian's green tags)
+ */
+export const DEFAULT_TAG_COLOR = '#98C379'; // green
+
+/**
+ * Default attachment node color
+ */
+export const DEFAULT_ATTACHMENT_COLOR = '#D19A66'; // orange
+
 /**
  * Get a pastel color by index (cycles through palette)
  */
diff --git a/vault/.obsidian/graph.json b/vault/.obsidian/graph.json
index 8a33809..275edf6 100644
--- a/vault/.obsidian/graph.json
+++ b/vault/.obsidian/graph.json
@@ -13,10 +13,10 @@
   "nodeSizeMultiplier": 0.25,
   "lineSizeMultiplier": 1.45,
   "collapse-forces": false,
-  "centerStrength": 0.58,
-  "repelStrength": 4.5,
-  "linkStrength": 0.41,
-  "linkDistance": 20,
+  "centerStrength": 0.3,
+  "repelStrength": 17,
+  "linkStrength": 0.5,
+  "linkDistance": 200,
   "scale": 1.4019828977761002,
   "close": false
 }
\ No newline at end of file
diff --git a/vault/.obsidian/graph.json.bak b/vault/.obsidian/graph.json.bak
index 8a33809..275edf6 100644
--- a/vault/.obsidian/graph.json.bak
+++ b/vault/.obsidian/graph.json.bak
@@ -13,10 +13,10 @@
   "nodeSizeMultiplier": 0.25,
   "lineSizeMultiplier": 1.45,
   "collapse-forces": false,
-  "centerStrength": 0.58,
-  "repelStrength": 4.5,
-  "linkStrength": 0.41,
-  "linkDistance": 20,
+  "centerStrength": 0.3,
+  "repelStrength": 17,
+  "linkStrength": 0.5,
+  "linkDistance": 200,
   "scale": 1.4019828977761002,
   "close": false
 }
\ No newline at end of file
diff --git a/vault/.obsidian/workspace.json b/vault/.obsidian/workspace.json
index cfe1e46..e62eb9f 100644
--- a/vault/.obsidian/workspace.json
+++ b/vault/.obsidian/workspace.json
@@ -4,17 +4,17 @@
     "type": "split",
     "children": [
       {
-        "id": "eb0bc9d810b8eb9f",
+        "id": "22c2ec9062224eb0",
         "type": "tabs",
         "children": [
           {
-            "id": "17cca9c5f5a7401d",
+            "id": "9ad6b7932a502fb2",
             "type": "leaf",
             "state": {
-              "type": "graph",
+              "type": "empty",
               "state": {},
-              "icon": "lucide-git-fork",
-              "title": "Graph view"
+              "icon": "lucide-file",
+              "title": "New tab"
             }
           }
         ]
@@ -49,7 +49,7 @@
             "state": {
               "type": "search",
               "state": {
-                "query": "p",
+                "query": "content:test",
                 "matchingCase": false,
                 "explainSearch": false,
                 "collapseAll": false,
@@ -70,11 +70,12 @@
               "title": "Bookmarks"
             }
           }
-        ]
+        ],
+        "currentTab": 1
       }
     ],
     "direction": "horizontal",
-    "width": 205.5
+    "width": 394.5
   },
   "right": {
     "id": "3932036feebc690d",
@@ -172,7 +173,7 @@
       "bases:Create new base": false
     }
   },
-  "active": "17cca9c5f5a7401d",
+  "active": "6be1f25c351d6c9f",
   "lastOpenFiles": [
     "test.md",
     "HOME.md",