2D Art tools for Indies overview

There are a wide variety of tools out there that artists use for a wide variety of purposes. Several game developers and hobbiests in the area will talk about one or two of the tools they use, discuss the problem it is meant to solve, give a high level demonstration of the tool, and provide tips to get started quickly.

Some tools that will be demoed are:
Alchemy - Scott Petrovic
Inkscape - Sam Coster
Krita - Scott Petrovic
Pixen - Stephen Hmiel
Spine - Jesse Chounard

If you have a tool you would like to demo or see demoed please reply below!