Added

• exit_on_mouse option in [engine] and matching --exit-on-mouse flag — restores the previous click-to-quit behavior for anyone who wants it

Changed

• mouse clicks no longer quit drift — any click used to exit immediately, so on window managers that deliver the focus click to the application it was impossible to switch to drift's terminal without dismissing it; mouse reporting is now off unless exit_on_mouse = true is set in [engine] or --exit-on-mouse is passed, which also leaves the terminal's own text selection and scrollback usable while drift runs (#59)

Added

• bonsai scene — a procedural bonsai grows out of a shallow pot: root flare, S-curved trunk tapering 3 cells wide to 1, primary branches leaving almost horizontally into flat foliage pads, and blossoms drifting down while the finished tree is held before it dissolves and regrows; configurable pause_seconds, fade_seconds and speed

Added

• boids scene — Reynolds flocking simulation; triangle-arrow heads with fading trails, three steering rules (separation, alignment, cohesion); configurable count and speed
• plasma scene — classic demoscene sine-sum color field; four overlapping waves with a drifting radial center; density characters (░▒▓█) layer depth; configurable speed and scale
• engine.oled_shift config flag (default false) — OLED pixel-shift now opt-in instead of always active

Changed

• dvd base speed raised from 10 → 16 cells/s (vy 5 → 8); crosses a new cell boundary roughly every 2 frames at 30 fps for noticeably smoother motion; tune back with speed = 0.65

Fixed

• dvd bounce now reflects the overshoot (2·maxX − x) instead of clamping to the wall; eliminates the one-frame "stick" before reversing direction
• dvd double velocity-flip on tiny terminals: when the logo is wider/taller than the available space, velocity is zeroed instead of being flipped twice (which left the logo oscillating in place)
• plasma spatial frequency doubled (base multiplier 6 → 12); blobs are now small enough relative to the terminal that edges cut through the middle of a pattern instead of at a band boundary
• Scene name matching is now case-insensitive (--scene Rain works, not just --scene rain)
• Unknown scene names in --scene / config now print a warning to stderr instead of silently falling back to all scenes

Added

• custom themes — define your own themes in config.toml under [theme.<name>] using #RRGGBB hex colors; custom themes appear in drift list themes and showcase mode alongside built-ins; custom themes with the same name as a built-in override it
• dvd scene — the classic bouncing logo; a rounded box drifts around the terminal, changing palette color on each wall bounce and flashing bright on a corner hit; configurable via [scene.dvd]: speed, label
• scene transitions — a smooth fade-to-black between scene switches; duration controlled by engine.fade_seconds (default 0.3s per phase, 0 = instant cut); applies to both automatic cycling and showcase navigation
• config validation — Load() now rejects out-of-range values for all numeric config fields with a clear multi-line error listing every invalid field
• config validation — scene.waveform.layers must be 1–3; scene.particles.friction must be 0.0–1.0
• shell snippet tests — unit tests covering shellSnippet() for all supported shells and unsupported-shell error paths
• scene unit tests — test coverage for all 9 scenes: waveform, rain, constellation, life, maze, pipes, clock, starfield, particles

Fixed

• orrery scene — terminal resize no longer resets the RNG to the same seed used at init, preventing repetitive asteroid and UFO spawn patterns after resize events

Added

• starfield scene — classic 3-D star warp; stars spawn near the centre, accelerate toward the viewer and fan out to the edges; close stars flash bright and leave a one-cell trail; configurable via [scene.starfield]: count, speed

Changed

• scene package structure — each scene now lives in its own subdirectory and Go package (internal/scene/rain, internal/scene/orrery, etc.); the orrery is split across orrery.go, bodies.go, effects.go, and render.go; scene registration moved to a new internal/scenes package to avoid circular imports
• contributing guide and PR template updated to reflect the new scene package structure and registration steps

Added

• orrery scene — a stylized solar system with a fixed sun, eight planets, and concentric orbit rings; configurable via [scene.orrery]: bodies, trail_decay
• showcase quit keys — q and ctrl+c now exit showcase mode in addition to esc, fixing terminals (e.g. Ghostty) that intercept the escape key (closes #34)

Fixed

• drift config now clearly reports when the config file is missing (with a hint to run drift config --init) and when it fails to parse (previously both cases silently used defaults with no indication)

Fixed

• drift version now shows the correct version, commit, and date when installed via go install — previously always showed dev / none / unknown because the binary had no ldflags applied