UI changes.

Bottom gray corners are gone, yellow button is darker, the toggle button
functions more properly now, had to add an attribute to the ToggleButton class.
The blue button is now the same as the top blue bar. Progress bar changes are coming.
Buttons no longer have shadows.
Toggle is now Green/Red instead of Green/DarkGreen.
Screen transitions, settings menu material and progress bar update.

There is now the ability to transition between "screens". Right now it's
possible to transition to the settings menu and back to the main screen.
On the settings menu is a mockup of a mockup. Lastly the progress bar
has been updated to match that of graphical mockups.
Folder selector.