This configures the appearance of the app itself (the cabinet) — it does not affect the public showcase site, which has its own colors in the "Landing" section.
- Open "Settings" → "Appearance".
- "Accent" — choose one of the app's ready-made theme colors.
- "App Background" — choose a background style; further down the same card — "Effect", an animation on top of the background.
- "This Device's Theme" — switch between light/dark theme.
- "Text Size" — use the slider to adjust the font size throughout the app.
What to Do If… #
…you want a different theme on your phone and computer? You can — the theme is chosen separately for each device/browser.
…you are looking for the showcase site's colors, not the cabinet's? That is a separate setting — open "Landing", the public site has its own color scheme.