aseprite/aseprite — pull request #9 by DocHoncho (2013-11-29 21:16:13+00:00)
Title: Moved Transparent Color button to ContextBar, implemented SelectionSettings class

Transparent Color button for moving pixels moved from status bar to
context bar. Current Transparent Color stored by new SelectionSettings
class, retrievable from ISettings.

Also implemented Observer classes for existing Settings interfaces for
future use.