Parser: a little bit of improving speed
Feature: Theme customization
Fix: Checkbox
Reading stops when the pop-up is open
Control panels appear smoothly
Transitions while opening are improved
Fix: onPopupOpen-listener is being removed on reader close
Fix: Bug was happening when default font was chosen
Fix: SwitchTo-event wasn't firing in some cases
Theme-event added
Bump version to 2.1
Fix: Click on the pane when pop-up is open doesn't run reading
README updated
Bump version to 2.1.1