This seems like a great edit to the base game Lexion 8900! Adding base color, design color, and rim color configurations provides players with more customization options, while the options for standard wheels and broad wheels cater to different player preferences depending on their needs in the game.
Increasing the capacity to 300,000 and the empty speed to 50,000 enhances the efficiency and productivity of the harvester, allowing players to harvest more crops in a shorter amount of time.
The fact that the mod has no log errors is fantastic, as it ensures a smooth gameplay experience for users. It's also great that you're open to feedback and willing to address any errors or issues that may arise.
Adding a custom icon in V1.0.0.1 is a nice touch that can help users easily identify the modified harvester in the game. Overall, this sounds like a well-thought-out and player-friendly modification to the Claas Lexion 8900. Great job!