Drop the Smart Carb artwork here:

  logo.png        Full lockup (fork-and-arm mark + "SMART CARB"), dark text.
                  Used in the public header, portal top bar and auth screen on mobile.

  logo-white.png  Same lockup with white text, for the dark footer, the dark
                  auth panel and any ink-coloured background.

  mark.png        The mark on its own (no wordmark) — favicon source, avatars.

  favicon.png     32x32 or 48x48 favicon.

Recommended: transparent PNG, at least 3x the display height
(logo renders at 36-44px, so export around 132px tall).
