New Feature: you can choose a folder of photos as your background picture,it will change by time.

[Josh050608]

Summary

This change adds a new background image source mode for profiles: Folder Rotation.

In Settings > Profiles > Window > Background, profiles can now choose between:

• Single Image
• Folder Rotation

When Folder Rotation is selected, the profile can store:

• a folder path
• a rotation interval in seconds

At runtime, sessions using the same profile share the same rotated background image.

What Changed

• Added new profile keys for:
  • background image source mode
  • background image folder location
  • background image folder interval
• Extended the Profiles > Window > Background UI with:
  • Source
  • Folder
  • Interval (seconds)
• Added a profile-level background image rotation manager
• Updated PTYSession to resolve background images through the rotation manager when folder rotation is enabled
• Kept existing single-image behavior unchanged

Behavior

• Rotates images from the configured folder at the configured interval
• Uses a shared runtime state per profile, so windows/panes with the same profile stay in sync
• Re-scans the folder on each tick so added/removed images are picked up automatically
• Continues polling even if the folder is temporarily empty, so rotation resumes automatically when images appear again

Manual Testing

Tested manually with a Development build:

• Verified Single Image still works as before
• Verified Folder Rotation settings save and reload correctly
• Verified folder preview appears in the settings UI
• Verified images rotate at the configured interval
• Verified multiple windows/panes using the same profile stay in sync
• Verified newly opened windows using the same profile inherit the current rotated image
• Verified changing the folder or interval updates existing sessions
• Verified an empty folder does not crash and resumes when images are added later

Demo video

output.mp4