Honestly, I had this idea before to use a full image as clock face. Since lack of actual Bangle device and a quick learning about low RAM took me down to drop the idea.
After some time this idea again activated in my mind with a bit difference. So this time I split the 240x240 image into 16 slices with dimensions of 60x60 each and converted image to binary using image converter tool.
Now the idea is to save each binary image file to storage, and draw all image once when face is initialized. 16 images will help to identify the segment of display to be updated on each minute and update only those image which is effected by the clock hands to be re-print.
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