If you want to find my open office slides about our FX system it’s here
If you want to find the assets of the Unity 4.6 project used during the presentation it’s here

And if you want a maybe more detailed explanation and source for our flash tool to create animation textures, you can go back to the 2 tutorials we’ve posted earlier :
http://www.alkemi-games.com/a-game-of-tricks-iii-particles-fun-part1/
http://www.alkemi-games.com/a-game-of-tricks-v-particles-fun-part2/