The example image is a .jfif file. I want to render a regular format like a PNG to the Inky Imression if possible. My use case is I want to download and display an image every hour from a remote URL. I have tried to piece it together from the examples here and snippets found online but I can't get much working.

Are there any special rules for exporting or generating 7-colour images for display on the Inky Impression? I can't find any documentation about this.

A step-by-step guide to rendering a custom image to the Inky Impression would be really helpful.