Inspired by London at dusk, this dark theme rests on a slate grey base washed with twilight indigo, then lights it with the pillar box red of a K6 telephone box and the muted steel blue of the Thames. The calm grey surface keeps long sessions easy on the eyes while the red accents mark what matters.
A dark theme from the Codigrate Cities collection, released 2026-08-25. Tags: Royal, Atmospheric, Steel.
Sold on codigrate.com for

Getting started on Rhino
- Download the zip with the Download button. Inside are the Mac one-click app ( Codigrate <Name> Rhino Theme.app ) and the Windows color file ( Codigrate <Name>.ini ).
- On a Mac, double-click the app and confirm you want to open it. It closes Rhino, applies the full theme ( viewport, toolbars, panels, tabs ), matches your macOS light or dark appearance to the theme, and reopens Rhino. The app is signed and notarized by Apple, so macOS opens it without a warning.
- On Windows, run the OptionsImport command ( or Tools → Import Options… ) and choose the .ini file.
- Tick Appearance, Grid and UiPaintColors and click Apply; the viewport and the toolbar and tab colors update at once.
- Rhino draws a few controls with the system appearance, so keep Windows in light mode for a light theme and dark mode for a dark theme.
London color palette
Every named color of the London palette, free to download for MacOS, CorelDRAW and Figma.
London on every platform
- London for JetBrains
- London for Sublime Text (
.99) - London for MacOS Terminal (
.99) - London for iTerm2 (
.99) - London for Ghostty (
.99) - London for Rhino (
.99), this page - London for Slack ($0.99)