What does this mean as a wep desc?

Hello. I have custom sprites for Herritors' Chariot ship. The issue is that new sprites display with white background even though the file itself is saved with transparent background. If you have any idea what might be the cause, let me know. Here is the modded file: https://drive.google.com/file/d/1JshDTX7fKnwER-ALikBhG1i9ZgMeYMax/view?usp=sharing ....

Please post any bug here, thanks!

This might be one of the first Silent Sector mods ever. :) The mod includes three ships: Wyvern — a light fighter with high firepower https://steamcommunity.com/sharedfiles/filedetails/?id=3190951818 ; Samurai — an upgrade-focused light fighter https://steamcommunity.com/sharedfiles/filedetails/?id=3190951867 ; Juggernaut — a heavy fighter with high shield energy https://steamcommunity.com/sharedfiles/filedetails/?id=3190952066 . Download: https://drive.google.com/file/d/1kWhXBJGwhzWVbYDrJLUh9LeXQD...

Is there any way to add it? Default ones are rather... disappointing.