The Color page

Three columns, in order

Left is the board: the structure of the grade, as a graph of nodes you wire together. Middle is the corrector: the controls for whichever node you have selected. Right are the scopes: the measurement that tells you whether what you just did is correct, not just different. Structure, then act, then measure — the same loop a colourist uses at a real grading panel.

The board is a graph, not a stack

Each node carries an image and, optionally, a key— a selection another node can read. Wire a key into a downstream node’s key input and that selection becomes the second node’s mask; add a node in parallel to grade the same source two different ways and recombine them; add a node as the outside of another to grade everything the first one did not take. A hover + on any node, a small toolbar, and ⇧Ato fit the graph all work the same as the app’s general node board.

A grade lives on an ordinary card in the layer’s effect stack, so its position in that stack — before or after a glow, say — is the same drag-to-reorder every other card already answers. Add a second grade card for a second, independent correction.

The corrector: Grade, Key, Shape

A selected node opens three tabs, one per question. Grade is the same lift/gamma/gain wheels covered in Color grading — the corrector hosts the real effect stack, so any layer effect can sit inside a grade node, not only the grading wheels. Key selects pixels by colour — a qualifier with soft shoulders you can see, not just a centre and a width — and Shape selects pixels by a power window instead. Turn on Show matteto see exactly what a key is selecting, painted white on black rather than laid over the picture, because a matte read against your footage is unreadable at exactly the edge you’re trying to judge.

Power windows

A window is a real shape you drag, rotate and resize on the frame, and every one of those is a keyframeable field like any other. Point a window’s source at a trackerand it rides the tracked motion instead of sitting still — or create a tracker directly from a window’s own outline with Track this window, so the region you already drew becomes what gets tracked, with nothing to redraw or convert.

Scopes you can trust

Waveform, parade, an RGB histogram, and a Rec.709 vectorscope with the real graticule targets and the skin-tone line — the single most useful reference on a vectorscope, and rare in a browser-based tool. Scopes only sample while at least one is open, so a document nobody is measuring costs nothing.

Looks you can trade

Save a preset at the node level for one correction you reuse, or at the page level for an entire look — every node, every key and every window, wiring included. A look exports as a plain file you can hand to someone else or bring in from them, alongside your other exports.