Hello,
On the sixth week of my GSoC, i have add the KWin Effect support to the startpage of the Plasmate, for Javascript based KWin Effects. Until now the user had to write the structure of KWin Effects manualy. So now he can do that inside from Plasmate. Also the KWin Effect support is coming with a very good template. The Javascript based KWin Effects are using the Plasma Package structure.You can find more details about the Javascript based KWin Effects on this blog post from Martin Graesslin.