Replace Rider Startup Image

Version 2024.1

Open the %userprofile%\AppData\Local\Programs\Rider\lib folder
Copy app.jar to an empty folder and make sure to back it up
Create a new folder in this directory and move app.jar into it
Go into this folder, right-click, choose Open in Terminal, and enter jar -xvf app.jar to extract. After extraction, delete app.jar
Then go to the rider\artwork\release directory within this folder
Rename the downloaded images to splash.png and splash@2x.png to replace the original images
Return to the extracted folder, then run jar -cfM0 ../app.jar ./ to compress the current folder, and save it to the parent directory
Put the new app.jar into %userprofile%\AppData\Local\Programs\Rider\lib to replace the original
Finally, delete all files in %userprofile%\AppData\Local\JetBrains\Rider2024.1\splash