Text Render Shadow?

I found a solution to my previous question. Thanks for the help.
Now that my text always faces the camera, it is the proper color when the sun hits it, but dark when backlit.
How do I fix it so it is always the render color?

Also, can I set it up so that if the angle of incidence between the camera direction and the labels location exceeds ±30 degrees, the text won’t render even though the trigger is overlapped?

Thank you.