Backup diff of Image/TestChart (No. 1)

• Backup list
• View the diff current.
• View the diff for visual.
• View the source.
• View the backup.
• Go to Image/TestChart.
  • 1 (2019-03-09 (Sat) 22:30:24)

• The added line is THIS COLOR.
• The deleted line is THIS COLOR.

- ISO 12233 Test Chart
--  http://www.graphics.cornell.edu/~westin/misc/res-chart.html