System and IINA version:
- macOS 13.0
- IINA 1.3.1 Build 133
Expected behavior:
The scroll bar is dark in Release Notes when using the dark theme.
Actual behavior:
The scroll bar is light in Release Notes when using the dark theme.
Steps to reproduce:
- Make sure dark theme is selected in macOS Appearance settings
- Install IINA 1.3.0
- Open IINA
- Click on IINA app menu
- Choose Check for Updates...
How often does this happen?
Every time.
Screenshot

You most likely need to update Sparkle dependence to the latest version. Specifically, in version 2.2.1 this problem was fixed.