create box that is placed over 'hidden' elements in game challenges
create box that is placed over 'hidden' elements in game challenges
update
update
update
update
alphabetize atom and molecule node imports
update
add options.cornerRadius to NumberSpinner
add options.touchXDilated and touchYDilated
 adjust layout of 'Molecules' screen so that brackets don't shift vertically when switching reactions
port doc/model.txt
update
don't fill the content (Rectangles) that go in the Before/After boxes
delete options.layoutStrategy (unused)
doc
wrap long lines
add TODO items for files with lines longer than 120 chars
remove repo-qualified type expressions, they were being flagged by IntelliJ
fold long lines