Revert "aa"

This reverts commit d40c604a7933eb35b980ffc5030d3f25732ac7b3.
improved the UI of the drawing component
merge with william's branch
Merge branch 'pao'
added images on the project and able to show them on the drawing component
Merge branch 'pao'
Changed  "Setting" to "Dictionary"
Added a little quiz, with multiple choice. There is no correct answer!