Hiding messages in PNG files with Rust - Part 1

Implementation of the PNGme project suggestion. Link to original guide:

This project creates a binary together with library functions to open and edit PNGs (mostly metadata) - we won't be manipulating the pixel data in the images. This will allow users to add custom chunks with encoded messages while keeping the file structure still valid. As mentioned in the video, I'd recommend trying each section on your own, rather than trying to follow along with the video.

GitHub repo with previous implementation attempt for reference:

[AuroraDubnyk]

When you said good news multiple tests are passing I remembered you had the functions that returned bool return true and I laughed because I felt we've all done that; assume the happy path!

[razishah]

THANKS FOR CREATING THAT video i was stuck in project for 1months even i take a break from rust cause i were not able to do that and im new in rust so i dontt have good experience with these chunks

[theinhumaneme]

Thanks for the video, and the code, i was trying solve it myself, but i was failing one case, I didn't know why, I will try to follow your code and improve my rust skills

[TheLANBeforeTime-uoph]

Thanks for the video, just fits my level :). I was unfamiliar with "Display", thus also stuck with the error returning part.
May I ask what editor do you use? Look like IntelliJ.