One of my favorite keyboard options for Android, Thumb Keyboard from Beansoft, has recently updated to version 4.3.3. Beansoft already upped the app to version 4 a little while ago bringing themes (and a slick coverflow gallery view of the themes) and a ton of other features that improved the keyboard's capacity for customization. Building on that update, 4.3.3 brings the following:

• Customizable keyboard backgrounds
• Adjustable typing volume
• Full support for h/qvga screens
• Minor bug fixes

If you haven't already, check the Market link below and grab the update!