diff --git a/bumblebee/module.py b/bumblebee/module.py
new file mode 100644
index 0000000..823c830
--- /dev/null
+++ b/bumblebee/module.py
@@ -0,0 +1,9 @@
+
+class Module(object):
+    def __init__(self, theme):
+        self._theme = theme
+
+    def theme(self):
+        return self._theme
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
diff --git a/bumblebee/modules/time.py b/bumblebee/modules/time.py
index dc054b2..4b6a1db 100644
--- a/bumblebee/modules/time.py
+++ b/bumblebee/modules/time.py
@@ -1,6 +1,10 @@
 import datetime
+import bumblebee.module
+
+class Module(bumblebee.module.Module):
+    def __init__(self, theme):
+        super(Module, self).__init__(theme)
 
-class Module:
     def data(self):
         return datetime.datetime.now().strftime("%x %X")
 
diff --git a/bumblebee/output.py b/bumblebee/output.py
new file mode 100644
index 0000000..fa2e042
--- /dev/null
+++ b/bumblebee/output.py
@@ -0,0 +1,15 @@
+
+class Output(object):
+    def start(self):
+        pass
+
+    def add(self, obj):
+        pass
+
+    def get(self):
+        pass
+
+    def stop(self):
+        pass
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
diff --git a/bumblebee/outputs/i3.py b/bumblebee/outputs/i3.py
index 7ed5836..b47bb73 100644
--- a/bumblebee/outputs/i3.py
+++ b/bumblebee/outputs/i3.py
@@ -1,8 +1,10 @@
 import json
+import bumblebee.output
 
-class i3bar:
+class i3bar(bumblebee.output.Output):
     def __init__(self):
         self._data = []
+
     def start(self):
         return json.dumps({ "version": 1 }) + "["
 
diff --git a/bumblebee/themes.py b/bumblebee/themes.py
new file mode 100644
index 0000000..3e5f001
--- /dev/null
+++ b/bumblebee/themes.py
@@ -0,0 +1,6 @@
+
+class Theme:
+    def __init__(self, name):
+        pass
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
diff --git a/bumblebee/themes/simple.json b/bumblebee/themes/simple.json
new file mode 100644
index 0000000..0db3279
--- /dev/null
+++ b/bumblebee/themes/simple.json
@@ -0,0 +1,3 @@
+{
+
+}
diff --git a/i3bumblebee b/i3bumblebee
index 9ff4920..5ddcbbd 100755
--- a/i3bumblebee
+++ b/i3bumblebee
@@ -4,6 +4,7 @@ import sys
 import time
 import argparse
 import importlib
+import bumblebee.themes
 import bumblebee.outputs.i3
 
 def print_module_list():
@@ -13,7 +14,8 @@ def print_module_list():
 def main():
     parser = argparse.ArgumentParser(description="display system data in the i3bar")
     parser.add_argument("-m", "--modules", nargs="+", help="List of modules to load. The order of the list determines their order in the i3bar (from left to right)")
-    parser.add_argument("-l", "--list", action="store_true", help="List all available modules")
+    parser.add_argument("-l", "--list", action="store_true", help="List all available modules and themes")
+    parser.add_argument("-t", "--theme", help="Specify which theme to use for drawing the modulemoduless")
 
     args = parser.parse_args()
 
@@ -22,11 +24,12 @@ def main():
         sys.exit(0)
 
     modules = []
+    theme = bumblebee.themes.Theme(args.theme)
     for m in args.modules:
         # TODO: how to cleanly handle errors here?
         # (useful error messages)
         module = importlib.import_module("bumblebee.modules.%s" % m)
-        modules.append(getattr(module, "Module")())
+        modules.append(getattr(module, "Module")(theme))
 
     output = bumblebee.outputs.i3.i3bar()