---
id: TASK-028
title: 'TUI: Persist theme selection across restarts'
status: To Do
assignee: []
created_date: '2026-06-12 04:21'
labels:
  - tui
  - enhancement
dependencies: []
priority: low
ordinal: 28000
---

## Description

<!-- SECTION:DESCRIPTION:BEGIN -->
Theme resets to `flexoki` every time the TUI starts. Save the selected theme index to a local state file so the last-used theme is restored on next launch.

State file location: `~/.local/share/dashboard/tui_state.json` (create dir if needed).

Implementation:
- On `action_next_theme()`, write `{"theme_idx": N, "page_id": "..."}` to the state file
- On `on_mount()`, read the file if it exists and restore `_theme_idx` before applying the theme
- Use `json` + `pathlib.Path`; silently ignore missing or malformed state file
- A single state file shared with TASK-022 (page persistence)
<!-- SECTION:DESCRIPTION:END -->

## Acceptance Criteria
<!-- AC:BEGIN -->
- [ ] #1 Selected theme persists after quitting and relaunching the TUI
- [ ] #2 Missing or corrupt state file falls back to flexoki without error
- [ ] #3 State file is human-readable JSON
<!-- AC:END -->