diff --git a/panel/theme/__init__.py b/panel/theme/__init__.py
index dd945c48df..80b6d93a7c 100644
--- a/panel/theme/__init__.py
+++ b/panel/theme/__init__.py
@@ -1,3 +1,28 @@
+"""
+The theme module contains Design and Theme components.
+
+Each Design applies a coherent design system (e.g. bootstrap or
+material) to a template or a set of components, while Theme objects
+implement different color palettes (e.g. dark or default).
+"""
+
 from .base import (  # noqa
     THEMES, DarkTheme, DefaultTheme, Design, Inherit, Theme,
 )
+from .bootstrap import Bootstrap
+from .fast import Fast
+from .material import Material
+from .native import Native
+
+__all__ = (
+    "THEMES",
+    "Bootstrap",
+    "DarkTheme",
+    "DefaultTheme",
+    "Design",
+    "Fast",
+    "Inherit",
+    "Material",
+    "Native",
+    "Theme"
+)