Default [Q] Make assistive light as bright as with a LED Flash App, how?

Saidly the assistive light function on the S4 is much darker than when using the build in Kamara for taking pictures. I installed a LED Flashlight App where the LED is as bright as when taking pictures. However it would be nice if somehow the function of the assistive light could be modified that it is as bright as with the App. I'm rooted of course.

Thanks for help.