Day and Knight

A VS Code extension that automatically switches your editor theme between day and night.

It supports:

• Auto update theme based on local time
• Random theme selection from your configured lists
• Consistent per-day theme choice (same theme for the whole day)
• One-click manual toggle from the status bar

Why use this extension

day-and-knight helps you keep your editor comfortable through the day:

• Day mode runs from 06:00 to 17:59
• Night mode runs from 18:00 to 05:59
• Themes are chosen from your own theme arrays

Quick setup

1. Install the extension in VS Code.
2. Open your workspace settings.json.
3. Add your light/dark theme lists and keep auto update enabled.

Sample config:

{
  "day-and-knight.autoUpdate": true,
  "day-and-knight.lightThemes": ["Default Light+", "GitHub Light", "Solarized Light"],
  "day-and-knight.darkThemes": ["Default Dark+", "One Dark Pro", "Dracula"]
}

Commands

• Day and Knight: Toggle Theme
• Day and Knight: Toggle to Day Theme ☀️
• Day and Knight: Toggle to Night Theme 🌙
• Day and Knight: Enable Auto Update
• Day and Knight: Disable Auto Update

Important behavior

• Clicking the status bar toggle (or running Toggle Theme) will:
  • switch to the opposite mode theme
  • disable auto update
• To resume automatic switching, you must manually run:
  • Day and Knight: Enable Auto Update

How random selection works

Theme selection is random but stable for each local day:

• A hash is computed from the day string (YYYY-MM-DD)
• That hash picks an index from your theme array
• Result: you get consistency throughout a day, and natural variation across days

Extension settings

• day-and-knight.autoUpdate (boolean, default: true)
• day-and-knight.lightThemes (string array, default: ["Default Light+"])
• day-and-knight.darkThemes (string array, default: ["Default Dark+"])

Notes

• This extension writes the selected theme to workbench.colorTheme.
• It disables window.autoDetectColorScheme to avoid OS-level theme overrides.
• Auto update checks and reapplies mode every minute.
• If a theme list is empty/invalid, a safe fallback is used (Default Light+ / Default Dark+).

Release notes

See RELEASE_v0.0.1.md for the v0.0.1 release details.