Remove ButtonHandler in favour of Callback handler. Rename all click into onClick in xml files.
Refactoring: CheckboxBase is BaseCheckbox by convention
Application enhancements. separate CSS and Interface parsing to avoid random bug with CSS not loaded befor Interface.
Added modal layer with main screen manager locking.
Refactoring ScrollControlBase to BaseScrollControl. Rename scroll-control-base into simple scroll-control. adding touch listening for scroll control
recatngle radius for border, background and gradient-background decorator
More colors for color handler. static source image handler will warn about absent image