fill the canvas with blue as a `` sky '' concode_field_sep GraphicsContext canvas concode_elem_sep Slider windSlider concode_elem_sep Canvas launcherCanvas concode_elem_sep ParticleManager manager concode_elem_sep Button startButton concode_elem_sep Timeline timeline concode_elem_sep Button helpButton concode_elem_sep ResourceBundle resources concode_elem_sep Canvas mainCanvas concode_elem_sep Slider angleSlider concode_elem_sep TextField windText concode_elem_sep Button exitButton concode_elem_sep TextField angleText concode_elem_sep Button stopButton concode_elem_sep ArrayList<TextField> texts concode_elem_sep double angle concode_elem_sep URL location concode_elem_sep double startTime concode_elem_sep double windSpeed concode_elem_sep Button resetButton concode_elem_sep ArrayList<Slider> sliders concode_elem_sep GraphicsContext launcher concode_field_sep void windSliderEvent concode_elem_sep void drawFireworks concode_elem_sep void windTextEvent concode_elem_sep void stopEvent concode_elem_sep void angleSliderEvent concode_elem_sep void angleTextEvent concode_elem_sep void exitEvent concode_elem_sep void resetEvent concode_elem_sep void clearCanvasAndDraw concode_elem_sep void startEvent concode_elem_sep void initialize concode_elem_sep void drawLauncher concode_elem_sep void helpEvent concode_elem_sep void drawGrass
void function ( ) { Paint loc0 = canvas . getFill ( ) ; canvas . setFill ( Color . DEEPSKYBLUE ) ; canvas . fillRect ( 0 , 0 , mainCanvas . getWidth ( ) , mainCanvas . getHeight ( ) ) ; canvas . setFill ( loc0 ) ; }