Add a new demo page showing how to keepting the X-Y Ratio.
Merge commit '8d318732b656b341f4dc583ea22e68c30cf4b612' into gh-pages
Squashed 'src/' changes from 6cdd58f..8d31873

8d31873 Add a new demo page showing how to keepting the X-Y Ratio.

git-subtree-dir: src
git-subtree-split: 8d318732b656b341f4dc583ea22e68c30cf4b612
Merge commit '5fe5a683d66246d932641ad80f3029adee42a2cb' into gh-pages