All engineering is reverse engineering if you document things poorly enough.
Standard documentation be like
.header {
background-color: green; // makes header-background "green"
}
๐
My company bought a company where all of the software was documented in Dutch.
Management: Horrors! We are doomed!
Me: I think I can handle this.
The software was in Visual Basic. I read German - from 20 years ago high-school lessons. I think I had to open a German-English dictionary twice.