https://github.com/T1nk3r3ll4/CTF-writeups/blob/main/HSCTF8/images/misc-pallets-of-gold1.png)
We used CyberChef to solve this (similar to the glass-windows challenge), but I am going to use Stegonline for this writeup: https://stegonline.georgeom.net/upload.
I played with the buttons until I could see the flag.
flag{plte_chunks_remind_me_of_gifs}