Ghost introduced an on-board image editing capatibility in autumn 2023 and made this available for every customer on Ghost(Pr0). Unfortunately, while Ghost itself is always keen on contributing and using open source solutions, the image editing tool they chose is a proprietary closed source tool called Pintura.
Pintura is not available on Magic Pages. I have inquired about a custom pricing plan for all Magic Pages customers, however, this would drastically increase the cost of both the Starter and Pro plans.
If you have your own Pintura license key, please send a quick email to help@magicpages.co for help with setting it up.