diff --git a/app.py b/app.py
index 36e198d..e358abf 100644
--- a/app.py
+++ b/app.py
@@ -161,12 +161,23 @@ class User(BaseModel):
     def is_authenticated(self):
         return True
 
+    @property
     def groups(self):
         return (
             UserGroup.select().join(UserGroupMembership, on=UserGroupMembership.group)
             .where(UserGroupMembership.user == self)
         )
 
+
+# page perms (used as bitmasks)
+PERM_READ = 1
+PERM_EDIT = 2
+PERM_CREATE = 4
+PERM_SET_URL = 8
+PERM_SET_TAGS = 16
+PERM_ALL = 31
+PERM_LOCK = ~(PERM_EDIT | PERM_CREATE | PERM_SET_URL | PERM_SET_TAGS)
+
 class UserGroup(BaseModel):
     name = CharField(32, unique=True)
     permissions = BitField()
@@ -250,15 +261,38 @@ class Page(BaseModel):
     def prop(self):
         return PagePropertyDict(self)
     def is_editable(self):
-        return not self.is_locked
+        return self.can_edit(current_user)
 
     def can_edit(self, user):
-        if self.is_locked:
-            return user.id == self.owner.id
-        return True
+        perm = self.get_perms(user)
+        return perm & PERM_EDIT or (self.owner == user and perm & PERM_CREATE)
     def is_owned_by(self, user):
         return user.id == self.owner.id
 
+    def get_perms(self, user=None):
+        if user is None:
+            user = current_user
+
+        if user.is_anonymous:
+            return UserGroup.get_default_group().permissions & PERM_LOCK
+
+        if user.is_admin:
+            return PERM_ALL
+
+        perm = 0
+        # default groups  
+        for gr in user.groups:
+            perm |= gr.permissions
+
+        # page overrides
+        for ov in self.permission_overrides:
+            if ov.group in user.groups:
+                perm |= ov.permissions
+
+        if self.is_locked and self.owner.id != user.id:
+            perm &= PERM_LOCK
+        return perm
+
 
 class PageText(BaseModel):
     content = BlobField()
diff --git a/templates/base.jinja2 b/templates/base.jinja2
index 288bd0a..34a2b4f 100644
--- a/templates/base.jinja2
+++ b/templates/base.jinja2
@@ -58,9 +58,9 @@
       <div class="footer-copyright">&copy; 2020–2023 Sakuragasaki46.</div>
       <div class="footer-loggedinas">
         {% if current_user.is_authenticated %}
-        {{ T('logged-in-as') }}: <strong>{{ current_user.username }}</strong>
+        <span class="material-icons">person</span> {{ T('logged-in-as') }}: <strong>{{ current_user.username }}</strong>
         {% else %}
-        {{ T('not-logged-in') }}. <a href="/accounts/login">{{ T("login") }}</a>
+        <span class="material-icons">person_off</span> {{ T('not-logged-in') }}. <a href="/accounts/login">{{ T("login") }}</a>
         {% endif %}
       </div>
       <div class="footer-actions" id="page-actions">{% block actions %}{% endblock %}</div>
diff --git a/templates/contributions.jinja2 b/templates/contributions.jinja2
index 7ddbf6f..8b37de7 100644
--- a/templates/contributions.jinja2
+++ b/templates/contributions.jinja2
@@ -13,7 +13,7 @@
 
 <ul>
   {% if page_n > 1 %}
-  <li class="nl-prev"><a href="?page={{ page_n - 1}}">&laquo; Previous page</a></li>
+  <li class="nl-prev"><a href="?page={{ page_n - 1 }}">&laquo; Previous page</a></li>
   {% endif %}
     
 
diff --git a/templates/home.jinja2 b/templates/home.jinja2
index 971648f..ab01ddc 100644
--- a/templates/home.jinja2
+++ b/templates/home.jinja2
@@ -7,7 +7,9 @@
   <h1 id="firstHeading">{{ T('welcome').format(app_name) }}</h1>
 
   <div class="nl-new">
-    <a href="/create/"><button class="submit-primary">{{ T('new-note') }}</button></a>
+    <a href="/create/">
+      <button class="submit-primary"><span class="material-icons">create</span> {{ T('new-note') }}</button>
+    </a>
   </div>
 
   <h2>{{ T('latest-notes') }}</h2>
diff --git a/templates/manageaccounts.jinja2 b/templates/manageaccounts.jinja2
index 0f42c0e..defd67f 100644
--- a/templates/manageaccounts.jinja2
+++ b/templates/manageaccounts.jinja2
@@ -18,7 +18,7 @@
   
   <ul>
     {% if page_n > 1 %}
-    <li class="nl-prev"><a href="?page={{ page_n - 1}}">&laquo; Previous page</a></li>
+    <li class="nl-prev"><a href="?page={{ page_n - 1 }}">&laquo; Previous page</a></li>
     {% endif %}
     
     {% for u in users %}
@@ -29,7 +29,7 @@
       -
       Groups:
       <ul class="inline">
-        {% for ug in u.groups() %}
+        {% for ug in u.groups %}
         <li>{{ ug.name }}</li>
         {% endfor %}
       </ul>