Computational Thinking Analysis
1)Decomposition
-each grid includes 2 rectangles and 2 triangles
-6x6
-no stroke
-canvas 600,600
-every grid aligned
2)Pattern Recognition 
-Tiling
-randomness
-Scale is linear
-Thera are 36 grid(including 2 rects and 2 triangles)
3)Abstraction
-Declare variables
-setup()
-create canvas
-Assign var values
-draw()
-for()
-rec() x2          } x36
-triangle()x2     
-w,h
-blue fill
-white fill
-orange color
-pink color
4)Algorithm Design
-var bgcolor
-var x
-var y
-var sz
-var gap
-var dice
-var curRot