I don't think very much. This is a contenteditable <textarea> element with a CSS transform to project it onto the screen in the photo.
From digging through the minified js, there's just a small amount of code that sets it up and puts some canned text in there (of which there are a few choices, but still not a huge amount).
> A photo may also be referred to as a ‘photograph’, this is a combination of the Greek words for light and drawing; A photograph is a drawing made of light.
Source https://shuttermuse.com/glossary/photo/
According to Wikipedia the two words mean the same thing:
https://en.m.wikipedia.org/wiki/Photograph
Photo seems to be the more popular version lately which is hardly surprising:
https://books.google.com/ngrams/graph?content=photo%2Cphotog...
I've noticed that the editable text in the laptop screen isn't as overexposed as the rest of the laptop's screen.
On that note, why is it so hard to photograph a screen with the right exposure? Automatic exposure always gets the brightness wrong, and even if you manually fix the exposure level, it's hard to reliably map black to near #000000 and white to near #ffffff and gray to near #808080.
[1]: https://s3-eu-west-1.amazonaws.com/developer-portal-assets/l...