[LC 8/9] ➤ ColorPicker*
Color picker (especially use as popup)
 
  
[LC 8/9] ➤ DatePicker*
Date picker (especially use as popup)
 
  
[LC 8/9] ➤ BaseClock*
Displays time using any number base in range 2 to 60
  
[LC 8/9] ➤ ClockAround*
Analogue Clock using hands or arcs or bullets (and digital display)
  
[LC 8/9] ➤ DigitClock*
Digital Clock (also FengShui colored)
 
  
[LC 8/9] ➤ OrientedText*
Rotate styled text
(fast enough for animation)
  
[LC 8/9] ➤ Polygon*
Resize poly by handles, fill poly with pattern, use StarPolygons
  
[LC 8/9] ➤ Progress*
Show progress in rectangle or oval
 
  
[LC 8/9] ➤ ChangeImage
(Masked) images and their transitions. Partially extends the TurnImage widget
  
[LC 8/9] ➤ IconGrid*
Use a grid of draggable/clickable icons containing color, image, svgIcon, text
  
[LC 8/9] ➤ ImageWidget
Affine transform an image
(fast enough for animation)
  
[LC 8/9] ➤ SVGText*
Display and affine transform text (svgFont) or an svgPath
  
[LC 8/9] ➤ TurnImage
Image rotation or perspective horizontal/vertical image turn
  
[LC 8/9] ➤ BioRhythm
 newest 
   Shows up to 7 biorhythm curves and
   their weighted mean (graph or table)
  
Where is an included source code (= the .lcb file) located?
Find the folder of the installed widget in your "User Extensions" folder, see tab "Files & Memory" of your LC preferences.
Then (optionally copy the folder to different location) open the lcb file from the Extension Builder (LC menu "Tools").