I have made it possible to load/save presets as base64 strings, so that people can share brush presets easily. I used this lib for as3: base64-optimized-as3-lib. The nice thing about this is that the presets are text strings, and can be posted in comments, shared by mail or IM, or any other kind of text communication. The base64 string represents a serialized flash Object-object, storing key-value pairs for each setting, so it should be possible to make presets specifying just some of the settings, while leaving the rest, although in this version all the settings are stored.
You can save the base64 string in a text document at the moment as it’s not possible to save them in the application, but I have added some hard coded presets you can try using the numbered buttons. (they can be accessed with keys 0-9 aswell)
To open the preset window, click Presets in the panel or press P. To make a base64 string for your brush, click “Generate base64″, and copy the text. To use a base64 brush that someone sent you, just paste it in the text area and click “Load from base64″.
You can share presets in the comments below if you want. I might even add good ones as standard presets in the application.