When working on creating a screenshot for the Advanced Effects chapter, I noticed a bug in the vectorizer that was generating double-edges within bitmaps due to antialiasing. This has been fixed, which has also cleaned up the vectors quite a lot. Bonus... we can now have pencil shading.
Merge pull request #99 from jocelynlih/paul

When working on creating a screenshot for the Advanced Effects chapter, ...
Fixes for saving score and adding playground
Merge pull request #100 from jocelynlih/ankur-saving-score-fixes

Fixes for saving score and adding playground
Fixing join method and alinging the score shown on the screen
Merge pull request #101 from jocelynlih/ankur-score-fixes

Fixing join method and alinging the score shown on the screen
Updating Readme and screenshot
Merge branch 'master' into jocelyn-actionsForGameEnd
Use smoke particle effect.