Inspired by Mount Etna's nighttime eruptions, this dark theme builds on an ashen basalt grey base and layers in the incandescent reds, oranges, and golds of molten lava. The near-neutral charcoal surface keeps long sessions calm, while the warm lava accents draw the eye to what matters.
A dark theme from the Codigrate Nature collection, released 2026-06-28. Tags: Ember, Earthy, Cinematic.
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.
Etna color palette
Every named color of the Etna palette, free to download for MacOS, CorelDRAW and Figma.
Etna on every platform
- Etna for JetBrains
- Etna for Xcode ($2.99)
- Etna for Zed (
.99) - Etna for Sublime Text (
.99) - Etna for MacOS Terminal (
.99) - Etna for iTerm2 (
.99) - Etna for Ghostty (
.99) - Etna for Rhino (
.99), this page - Etna for Slack ($0.99)
- Etna for Line
From the blog
- Value: How Colors Get Vivid: Value is the V in HSV, the brightness dial that tops out at the pure color, not white. How it differs from lightness, and why designers reach for it.