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+About Pydenticon
+================
+
+Pydenticon is a small utility library that can be used for deterministically
+generating identicons based on the hash of provided data.
+
+The implementation is a port of the Sigil identicon implementation from:
+
+* https://github.com/cupcake/sigil/
+
+Why was this library created?
+-----------------------------
+
+A number of web-based applications written in Python have a need for visually
+differentiating between users by using avatars for each one of them.
+
+This functionality is particularly popular with comment-posting since it
+increases the readability of threads.
+
+The problem is that lots of those applications need to allow anonymous users to
+post their comments as well. Since anonymous users cannot set the avatar for
+themselves, usually a random avatar is created for them instead.
+
+There is a number of free (as in free beer) services out there that allow web
+application developers to create such avatars. Unfortunately, this usually means
+that the users visiting websites based on those applications are leaking
+information about their browsing habits etc to these third-party providers.
+
+Pydenticon was written in order to resolve such an issue for one of the
+application (Django Blog Zinnia, in particular), and to allow the author to set
+up his own avatar/identicon service.
+
+Features
+--------
+
+Pydenticon has the following features:
+
+* Compatible with Sigil implementation (https://github.com/cupcake/sigil/) if
+  set-up with right parameters.
+* Creates vertically symmetrical identicons of any rectangular shape and size.
+* Uses digests of passed data for generating the identicons.
+  * Automatically detects if passed data is hashed already or not.
+  * Custom digest implementations can be passed to identicon generator (defaults
+  to 'MD5').
+* Support for multiple image formats.
+  * PNG
+  * ASCII
+* Foreground colour picked from user-provided list.
+* Background colour set by the user.
+* Ability to invert foreground and background colour in the generated identicon.
+* Customisable padding around generated identicon using the background colour
+  (foreground if inverted identicon was requested).
+