Oh, I see what you guess are actually saying, the emojis themselves look wrong.
You will have to check out the project I used to generate the emoji images from the game files. Actual code Boundlexx uses to generate them. The game does not use actual Unicode emojis, it has its own format for storing the emoji icons and rendering them. As such all of the ones displayed on Boundlexx/Boundless Info are pregenerated images using Icon Renderer.
Example for the “Owl” emoji:
