v1.2.4

This update transforms Sphaira from simply choosing themes into truly creating them.

Theme access: Press Y on the main screen, then open “Theme” → “Select Theme”.
Choose “Sphaira Theme,” “Edit Current Theme,” or “New Custom Theme”.
Customize 19 theme color properties.
Replace 9 image assets.
2 backgrounds: main background and grid background.
7 file icons: folder, file, image, audio, video, archive, and Homebrew.
Customize theme background music.
Create, edit, and delete custom themes.
Preview color changes live through real popups, sidebars, progress bars, and other UI elements.
Scan a QR code to upload images from your phone, with cropping, dragging, zooming, and preview support.
Enter HEX colors, reset colors, and hold L/R to adjust opacity.
Built-in themes are protected from accidental modification.
Fully localized multilingual interface.

Other improvements and fixes:

Fixed an issue that prevented Sphaira from restarting itself in certain situations, such as when changing the language.
Improved button interaction logic in the Games menu.
Improved prompts when using the L button to select multiple games for batch deletion.
The image below demonstrates the theme customization menu. Just like changing icons, you can upload images by scanning a QR code with your phone.