Help With Italo's Color Picker

So I got Italo’s color picker into my drawing app and got it to work with my Drawing screen via a TinyDB. But when I go from the ColorPicker screen back to the drawing screen, obviously the screen is initialized anew and the previous things drawn are not there anymore. Is there a way to save the elements that are drawn before switching to the ColorPicker screen and redraw them upon reopening of the Drawing screen?

By the way, this is the structure of my drawing blocks.

Don’t use different screens, use arrangements and their visibility to switch between them on one screen, that way everything happens on the same screen and you do not lose your drawing

What do you mean by arrangements?

Use different screens wisely

If you decided to use different screens, then you should switch them correctly, else you will run out of memory after a while...      
The recommended method of switching screens in App Inventor
(Thanks Taifun)
Also see demo: multiscreen.aia