Preset/palette completion: unified config layering + custom keybinds

CHANGELOG.md

@@ -8,9 +8,24 @@ versioning follows [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 First public release.
 
+### Added
 - Physarum simulation (Jones 2010 model) with 30 presets and runtime parameter controls
-- Terminal rendering: half-block, ASCII, braille, quadrant, shade, points, and sculpted charsets; OKLch-based color palettes
+- Terminal rendering: half-block, ASCII, braille, quadrant, shade, points, and sculpted charsets; 22 OKLch-based color palettes
 - Screensaver and interactive modes; pause, restart, preset/palette cycling at runtime
 - GIF, PNG, and WebM export
 - Window-frame display modes
+- `vinescii` preset — the vines (flocking) pattern in pure ASCII
 - Experimental: multi-species, choir audio, and GUI (feature-gated); WASM build (standalone crate)
+
+### Changed
+- Quick-keys `1`–`3` now switch the launch presets (Organic, Constellation, Vinescii).
+- Preset pass: renamed pulse→slime, flocking→vines, ripple→smoke, lumen→mold
+  (old names still accepted as CLI aliases); per-preset visual tuning applied
+  (braille/quadrant charsets, palette assignments, auto-normalize, window frames);
+  constellation re-rolls its init layout on reset and auto-resets on collapse.
+- Fixed the stale `--preset` help text (was listing removed presets).
+
+### Added (Custom Keybinds)
+- Custom key bindings via `~/.config/tslime/keybinds.toml`: bind keys `1`–`7` to any preset or
+  saved config; user binds override the defaults. A/B compare (`Shift+1`–`7`) works for bound
+  presets and configs. The `?` overlay shows live bindings.

README.md

@@ -46,7 +46,7 @@ Some starting points:
 
 ```bash
 tslime --preset lightning --palette heat      # fast dendritic branching, warm colors
-tslime --preset zen --palette ocean --fps 24  # slow and quiet
+tslime --preset drift --palette ocean --fps 24  # slow and quiet
 tslime --seed 42 --population 80000           # reproducible run, denser network
 tslime --braille --palette mono               # high-resolution monochrome
 tslime --palette-cycles 3 --palette-cycle-mode mirror  # banded contour coloring
@@ -69,7 +69,9 @@ lowercase increases and uppercase (Shift) decreases.
 |---|---|
 | `Space` | Pause / resume |
 | `r` | Restart |
-| `1`–`7` | Select preset (`Shift+1`–`7` to compare against current) |
+| `1`–`3` | Switch preset (Organic / Constellation / Vinescii) |
+| `4`–`7` | Custom binds — set in `~/.config/tslime/keybinds.toml` |
+| `Shift+1`–`7` | Compare bound preset/config (A/B) |
 | `8` | Randomize parameters |
 | `0` | Reset to defaults |
 | `+` / `-` | Time scale |
@@ -119,23 +121,61 @@ lowercase increases and uppercase (Shift) decreases.
 | `q` | Quit |
 | `Esc` | Close open overlay |
 
-## Gallery
+### Custom Keybinds
 
-<!-- ws6: preset/palette showcase gifs -->
+Customize quick-keys `1`–`7` by creating a `~/.config/tslime/keybinds.toml` file with the following format:
+
+```toml
+[[keybind]]
+key = "4"
+preset = "fire"
+
+[[keybind]]
+key = "5"
+config = "my-night-config"
+```
+
+- **Keys**: Bind to any digit `1`–`7`. Keys `1`–`3` default to Organic, Constellation, and Vinescii; user entries override.
+- **Targets**: Bind to either a `preset` (any of the 30 named presets) or a `config` (any saved configuration from `Ctrl+S`).
+- **Comparison**: Press `Shift+1` through `Shift+7` to compare the bound preset or config against the current settings (A/B mode).
+- **Invalid entries**: Silently ignored; the app launches normally and skips unparseable lines.
+- **Live bindings**: The `?` overlay shows current key bindings and their targets.
 
-There are 34 named presets: network, exploratory, tendrils, organic, minimal, moss,
-cosmic, fire, zen, storm, river, ethereal, petri, vortex, lightning, crystal,
-chaosedge, blob, worm, pulse, coral, flocking, maze, ripple, vortex36, chameleon,
-dynamictendrils, morphingcoral, reactiveswarm, duelingmodulators, lumen, aurora,
-bloom, and etching. Palettes and character sets are independent of the preset and
-can be cycled at runtime.
+## Gallery
 
-Four showcase presets highlight specific visual levers:
+<!-- ws6: preset/palette showcase gifs -->
 
-- **lumen** — Bleuje-style front-lit veins: temporal-accent recolor of growing fronts.
-- **aurora** — Luminous network glow: afterglow + soft diffusion + long faint tails.
-- **bloom** — Banded coral depth via mirrored palette cycles.
+There are 30 named presets: network, exploratory, tendrils, organic, fire, river,
+petri, vortex, lightning, chaosedge, blob, slime, vines, vinescii, smoke, vortex36,
+dynamictendrils, mold, etching, drift, constellation, mosaic, marble, prism, vellum,
+forge, wane, gossamer, codex, and tide. The old names pulse, flocking, ripple, and
+lumen are still accepted as CLI aliases. Palettes and character sets are independent of
+the preset and can be cycled at runtime. Preset parameters are defined in
+`src/simulation/config.rs` and `src/preset_sim_defaults.rs`.
+
+Showcase presets highlight specific visual levers:
+
+- **slime** — Pulsing network with strong deposits and the slime palette; auto-normalizes brightness.
+- **vines** — Flocking-pattern filaments rendered without a window frame.
+- **vinescii** — The vines pattern rendered in pure ASCII.
+- **smoke** — Diffuse drift with the slate palette; auto-normalizes brightness.
+- **mold** — Bleuje-style front-lit veins with the mold palette; auto-normalizes brightness.
 - **etching** — Directional filament linework via Sobel glyph selection (Braille, TUI-only).
+- **drift** — Color that shifts with motion direction (temporal Hue mode).
+- **constellation** — Sparse star-map scatter via the Points charset; re-rolls layout on reset.
+- **mosaic** — Posterized color bands: Quantize mapping + wrapped palette cycles.
+- **marble** — Veined stone via heavy Gaussian diffusion + Perlin intensity mapping.
+- **prism** — Maximum color resolution: HalfBlockDual charset + strong color anti-aliasing.
+- **vellum** — Soft parchment density: Shade charset + logarithmic deposit curve.
+- **forge** — Grainy molten thermal: exponential intensity mapping + afterglow.
+- **wane** — Slow ghosting decay via low decay-gamma + power deposit curve.
+- **gossamer** — Delicate Braille threads with brightness glyphs + power mapping.
+- **codex** — Typographic engraving: custom ASCII charset + sigmoid contrast.
+- **tide** — Living water with animated hue-shift over time.
+
+Six new palettes accompany them: **jade** (mid-saturation green), **amber** (warm
+earth), **slate** (cool stone grey), **pastel** (high-key airy), **ink** (duotone
+ink-on-paper), and **copper** (oxidized rust-to-verdigris).
 
 ## How it works
 

benches/diffusion_benchmark.rs

@@ -234,8 +234,6 @@ fn bench_afterglow_ema_pass(c: &mut Criterion) {
     use tslime::Simulation;
 
     let config = SimConfig {
-        afterglow: 0.4,
-        afterglow_rate: 0.05,
         species_configs: vec![SpeciesConfig {
             count: 100,
             ..Default::default()