Using the game ui assets instead of screenshots would add a lot reliability and easing as everythings is already labelled inside C:\Farlight Launcher\AFK Journey\game\AFK Journey_Data\Cache\data\ui\icon.
The only problem is they are not .png files, they are acctually DXT compressed textures wich i have no idea of how to decompress, i had a few tries but failled(that might indicate they are encrypted???)