The three tabs

One dock, one pin rail, three editors. The rail never says which module an editor belongs to, and you never need to know: Pixel is the sprite editor, SFX and Tracker share one synth.

Pixel

A sprite editor. Layers with opacity and visibility, frames with their own durations, onion skin, a palette that lives in the document, animation tags that name a range of frames, and an undo history of its own. Pencil, eraser, fill, picker, selection, line, rectangle and ellipse, each on a key.

A document is a .pixel.tres. Export it as a PNG, as a sheet with a SpriteFrames beside it, one animation per tag, or as an Aseprite file that Aseprite opens with the layers, tags and durations intact. Or put a PixelSprite2D in a scene, hand it the document, and it draws and animates it as you edit.

SFX

A sound generator. Pick the action, Tick, Confirm, Deny, Pickup, Jump, Hit, Boom, Swell, Warn or Drop, roll a new one, then bend it on a rack of sliders until it’s the sound you meant. The action sets the shape and every roll picks a new character, so ten Jumps are ten different sounds that all jump. Random rolls everything. A document is a .sfx.tres; the export is a .wav. Or add a ChiptunePlayer to the scene, point it at the document, and it renders the sound itself and follows every edit.

Tracker

A pattern tracker over the same synth. Patterns of rows, a handful of channels, instruments built from the SFX engine’s oscillators and envelopes, and an instrument palette you can save and share between songs. A song is a .music.tres; the export is a .wav. A ChiptuneMusicPlayer plays the document and loops it without a gap; a song changed from a script is heard again after rerender().

Keys

F1 in any tab lists its keys. The same list is on the reference page, read from the same table.