Is there more documentation somewhere?

[IdontKnowWhatToNameThisAccount]

There are a lot of functions used in the examples that arent properly explained or documented anywhere, or at least I cant seem to find them. For example I dont really understand how oled.fill is supposed to work. Is there some documentation that simply explains the functionality of each function?

[datacute]

Most functions are simply exposing commands of the SSD1306. These can be found by searching google for:
ssd1306 datasheet "rev 1.5"

[SpenceKonde]

I would suggest linking to a copy of the latest datasheet referenced while working on development of this library. Unless the manufacturer keeps moving it around; Microchip now does this constantly for the AVRs, which is why I don't link directly to AVR datasheets anymore; I link to the Microchip product pages (mTC and DxC only currently) - where the latest, usually working - links are to be found.)

[SpenceKonde]

Okay, yeah, this also needs an API reference. Right now now I don't know how anyone does anything with this library? Do perform a deep dive on the source and write their own documentation and not share it? Do they just blindly copy-paste example code cargo-cult style then tweak it? (which of course is well known as a development anti-pattern)?

Here's what the path ahead of me looks like.

(what I want to do) -X BRIDGE OUT X- (API calls to make)------(data that gets set to screen)-----(what I want done)

The first step in the transformation of vision to working code is blackflagged at the gate because there is literally NO documentation whatsoever.

And I've got a lot of these screens... I'd like to use them, and your library is said to be highly flash important (which matters, some of these are going on tinies), but I don't know how to learn the API short of a deep dive to write my own docs.