How to make 'transparent image plane' not make shadows?

If I load an transparent image texture. Can I make it not to create shadow. Also if I load an colored transparent glass material, can i make the shadow in color.

Each light source is a camera. You can hide the object for this light source.

What if texture is haft portion transparent?
Also How to make partial transparent colored plane create color shadow?

Auto-generated shaders in Panda3D have serious limitations, you need to implement advanced decal mapping, shadow, transparency, and so on yourself.