I'm happy to announce the release of vty-ui 0.3. Get it from Hackage: http://hackage.haskell.org/package/vty-ui Or get the source with darcs: http://repos.codevine.org/vty-ui Project homepage: http://codevine.org/vty-ui/ This version of vty-ui features a richer rendering engine, generalized text transformations, and a more functional style. If you've written any applications to use vty-ui, your type signatures and usage of a few of the built-in widget types will need to change but the API is largely the same. In particular, the largest change was a refactoring inspired by Luke Palmer's blog post, "Haskell Antipattern: Existential Typeclass," which targeted vty-ui (among other libraries) in its treatment of the topic: http://lukepalmer.wordpress.com/2010/01/24/haskell-antipattern-existential-t... Here's a summary of changes: General * Replace Widget type class with a concrete Widget type * Move text widget into Graphics.Vty.Widgets.Text * Add support for generalized text "formatters" * Replace WrappedText widget type with a text-wrapping formatter * Provide a regex-based text-highlighting formatter (see the demo for an example) * Refactor the rendering engine to provide "address" information so you can get coordinates and size for rendered widgets * Add a few QuickCheck tests (and related fixes) Enjoy! -- Jonathan Daugherty