詳しくはICS LABに書いた記事をご覧ください。CSS3 の mix-blend-mode プロパティーを利用して作っています。
This is beautiful! your'e such a wizard.
How did you do this. Thsi is awesome
Nice! It reminds me of photographers taking photos of people writing with colored flashlights at night. Really interesting effect!
Need to know how to enable it? Go here.