Custom forks exist to make JRiver look native on different operating systems, such as for GNOME/Linux or for Windows 10/11 Fluent Design. JRiver Media Center Functional Overview of Skin Types Theater View - wiki.jriver.com

JRiver skins generally fall into two categories based on their primary use-case:

: Used to handle cross-platform differences (Windows, Mac, Linux) for element positioning and colors. 🛠️ How to Install or Modify

On the JRiver user forum (Interact), his thread was titled: "WIP: 'Cathode' Skin – Seeking Beta Testers with 4K Displays."

: Enhancing buttons with multiple "states" (Normal, Over, Pressed, Disabled) provides visual feedback, making the interface feel more responsive. SVG Support