diff --git a/api/src/main/java/com/dmdirc/ui/messages/UnreadStatusManager.java b/api/src/main/java/com/dmdirc/ui/messages/UnreadStatusManager.java
new file mode 100644
index 000000000..4181c2ce0
--- /dev/null
+++ b/api/src/main/java/com/dmdirc/ui/messages/UnreadStatusManager.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2006-2015 DMDirc Developers
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package com.dmdirc.ui.messages;
+
+import com.dmdirc.util.colours.Colour;
+
+import java.util.Optional;
+
+/**
+ * Keeps track of the number of unread messages in a window, and the most important notification colour for those
+ * messages.
+ */
+public interface UnreadStatusManager {
+
+    /**
+     * Gets the total number of unread lines in the window.
+     *
+     * @return The number of unread lines
+     */
+    int getUnreadLines();
+
+    /**
+     * Gets the most significant notification colour for the window, if any. More important events will override the
+     * colour of less important events (for example, the colour for a highlight event may replace the colour for
+     * an unread message event).
+     *
+     * @return The notification colour for the window. If empty, there is no active notification.
+     */
+    Optional<Colour> getNotificationColour();
+
+    /**
+     * Clears the unread status of the window, marking everything as read.
+     */
+    void clearStatus();
+
+}
diff --git a/src/main/java/com/dmdirc/FrameContainer.java b/src/main/java/com/dmdirc/FrameContainer.java
index 6be36f7c9..78c95b567 100644
--- a/src/main/java/com/dmdirc/FrameContainer.java
+++ b/src/main/java/com/dmdirc/FrameContainer.java
@@ -39,6 +39,7 @@
 import com.dmdirc.ui.messages.BackBufferFactory;
 import com.dmdirc.ui.messages.BackBufferImpl;
 import com.dmdirc.ui.messages.UnreadStatusManager;
+import com.dmdirc.ui.messages.UnreadStatusManagerImpl;
 
 import java.util.Collection;
 import java.util.Collections;
@@ -99,7 +100,7 @@ public FrameContainer(
         this.backBufferFactory = backBufferFactory;
 
         this.eventBus = eventBus;
-        this.unreadStatusManager = new UnreadStatusManager(this);
+        this.unreadStatusManager = new UnreadStatusManagerImpl(this);
         this.eventBus.subscribe(unreadStatusManager);
         configManager.getBinder().bind(unreadStatusManager, UnreadStatusManager.class);
 
diff --git a/src/main/java/com/dmdirc/interfaces/WindowModel.java b/src/main/java/com/dmdirc/interfaces/WindowModel.java
index 5ac7b4e86..d9aaf6a9f 100644
--- a/src/main/java/com/dmdirc/interfaces/WindowModel.java
+++ b/src/main/java/com/dmdirc/interfaces/WindowModel.java
@@ -134,5 +134,11 @@ public interface WindowModel {
      */
     Optional<InputModel> getInputModel();
 
+    /**
+     * Returns the manager tracking this window's unread messages.
+     *
+     * @return The unread status manager for this window.
+     */
     UnreadStatusManager getUnreadStatusManager();
+
 }
diff --git a/src/main/java/com/dmdirc/ui/messages/UnreadStatusManager.java b/src/main/java/com/dmdirc/ui/messages/UnreadStatusManagerImpl.java
similarity index 97%
rename from src/main/java/com/dmdirc/ui/messages/UnreadStatusManager.java
rename to src/main/java/com/dmdirc/ui/messages/UnreadStatusManagerImpl.java
index a1aa955ec..a51b76324 100644
--- a/src/main/java/com/dmdirc/ui/messages/UnreadStatusManager.java
+++ b/src/main/java/com/dmdirc/ui/messages/UnreadStatusManagerImpl.java
@@ -41,7 +41,7 @@
 /**
  * Tracks unread messages and other notifications.
  */
-public class UnreadStatusManager {
+public class UnreadStatusManagerImpl implements UnreadStatusManager {
 
     private final EventBus eventBus;
     private final WindowModel container;
@@ -54,7 +54,7 @@ public class UnreadStatusManager {
     private Optional<Colour> messageColour = Optional.of(Colour.BLUE);
     private Optional<Colour> highlightColour = Optional.of(Colour.RED);
 
-    public UnreadStatusManager(final WindowModel container) {
+    public UnreadStatusManagerImpl(final WindowModel container) {
         this.container = container;
         this.eventBus = container.getEventBus();
         this.colourManager = new ColourManager(container.getConfigManager());
@@ -100,14 +100,17 @@ private boolean includeEvent(final DisplayableEvent event) {
                 && !event.getDisplayProperty(DisplayProperty.DO_NOT_DISPLAY).orElse(false);
     }
 
+    @Override
     public int getUnreadLines() {
         return unreadLines;
     }
 
+    @Override
     public Optional<Colour> getNotificationColour() {
         return notificationColour;
     }
 
+    @Override
     public void clearStatus() {
         updateStatus(Optional.empty(), 0);
     }