Config and Theme

Config and theme

Config::init()/ThemeConfig::init() read config.json/theme.json from disk on startup. On NebulaOS's read-only-squashfs setup, that means reading from the writable overlay, not the squashfs image itself — settings saved from the UI stick around across reboots and across an A/B slot switch (see A/B Slot Model for how that storage is shared).

Commit b15ad7f fixed a real bug here: before it, both init() functions silently fell back to in-memory defaults on every boot instead of actually reading your saved files. No crash, so it went unnoticed for a while, but your settings never actually stuck. We've since confirmed on real hardware, across a real flash, that config and theme now persist properly.

See also: Integration with NebulaOS, and this repo's own Configuration page for the user-facing config options.