Theme
One colour is all it takes to make the embedded editor feel like part of your product rather than a bolted-on widget.
Primary color
What it is — your brand's primary colour. It's used for selection states — the selected voice and track cards, the played waveform bars — and, in a slightly stronger variant, for the active tab header.
Why / when — set it so the editor's accents match your site. Pick a colour that reads well against white, since it's applied to small UI accents and text-adjacent elements.
How — theme.primary (Builder: Theme → Primary color). Any CSS colour;
default #618fef.
javascript
theme: {
primary: '#7c3aed',
}
One key, by design.
theme.primary is currently the only theming key — there's no separate accent, background, or
text colour. It's deliberately scoped to the accents that matter so the editor stays legible against any host
page.