old_contents: # Include the directory where cvui is so we can load it
  import sys
  sys.path.append('../../../')
  
  import numpy as np
  import cv2
  import cvui
  
  cvui.random_number_generator(1, 2)
  
   # Create a black image
  img = np.zeros((512,512,3), np.uint8)
  
  cv2.namedWindow('Window')
  
  # Draw a diagonal blue line with thickness of 5 px
  cv2.line(img,(0,0),(511,511),(255,0,0),5)
  
  cv2.rectangle(img,(384,0),(510,128),(0,255,0),3)
  cv2.circle(img,(447,63), 63, (0,0,255), -1)
  
  font = cv2.FONT_HERSHEY_SIMPLEX
  cv2.putText(img,'OpenCV',(10,500), font, 4,(255,255,255),2,cv2.LINE_AA)
  
  cv2.imshow('Window', img)
  
  k = cv2.waitKey(0)
  if k == 27:         # wait for ESC key to exit
      cv2.destroyAllWindows()
  
new_contents: # Include the directory where cvui is so we can load it
  import sys
  sys.path.append('../../../')
  
  import numpy as np
  import cv2
  import cvui
  
  cvui.random_number_generator(1, 2)
  
   # Create a black image
  img = np.zeros((512,512,3), np.uint8)
  
  cv2.namedWindow('Window')
  
  # Change background color
  img[:] = (49, 52, 49)
  
  # Draw a diagonal blue line with thickness of 5 px
  cv2.line(img,(0,0),(511,511),(255,0,0),5)
  
  cv2.rectangle(img,(384,0),(510,128),(0,255,0),3)
  cv2.circle(img,(447,63), 63, (0,0,255), -1)
  
  font = cv2.FONT_HERSHEY_SIMPLEX
  cv2.putText(img,'OpenCV',(10,500), font, 4,(255,255,255),2,cv2.LINE_AA)
  
  cv2.imshow('Window', img)
  
  k = cv2.waitKey(0)
  if k == 27:         # wait for ESC key to exit
      cv2.destroyAllWindows()
  
subject: Add a nice background color