Workaround: Correctly Exporting Charts on Google Spreadsheet as Images using Google Apps Script
This is a sample script for correctly exporting the charts on Google Spreadsheet as the images using Google Apps Script. In the current stage, using Google Apps Script, when the charts on Google Spreadsheet are exported as the images, it seems that the exported images are not the same with the original one on Google Spreadsheet. About this, today, I could notice that I had answered for 2 questions. Q1, Q2 And also, I had already been reported this at the issue tracker. Ref