# nyoom-engineering/oxocarbon.nvim

A dark and light Neovim theme written in fennel, inspired by IBM Carbon.

Repository: https://github.com/nyoom-engineering/oxocarbon.nvim
Canonical: https://ross.abutalabs.com/products/oxocarbonnvim
Language: Fennel
License: MIT
License Family: permissive
Topics: neovim, neovim-colorscheme, rust, vim, vim-colorscheme, color-scheme, neovim-theme, theme
Last push: 2026-08-09T10:13:33+00:00

## Health v2 (maintenance only)
Score: 75/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 96, release rhythm 35, longevity 100
- inputs: {"age_days": 1495, "days_push": 24, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1629, forks 94 (observed 2026-08-28T04:05:13.827998+00:00)

## What it is
Oxocarbon.nvim is a dark and light colorscheme for Neovim written in Fennel, inspired by the IBM Carbon design system. It provides extensive highlight support for popular plugins like Treesitter, LSP, Telescope, and others while remaining fast and compatible with both true-color and 16-color terminals.

## Use cases
- change neovim color scheme to a dark theme
- find a light theme for neovim inspired by IBM Carbon
- colorscheme with treesitter and lsp highlight support
- fast neovim theme that doesn't slow startup
- neovim theme with transparent background support
- colorscheme that works in 16-color terminals
- theme with highlights for telescope and nvim-cmp

## When to choose
- you use Neovim and want a polished dark or light theme based on IBM Carbon's palette
- you need explicit highlight support for popular plugins like Treesitter, Telescope, Gitsigns, and NvimTree
- you care about startuptime and want a lightweight colorscheme
- you want a theme that works with both termguicolors and 16-color terminals

## When to avoid
- you need a colorscheme for editors other than Neovim (ports are separate projects)
- you prefer themes with many customizable style options or variants
- you want a theme not centered on blues and grays

## Facets
- artifact type: plugin
- maturity: active
- function: theme
- domain: text-editors, developer-tools
- platform: editor-plugin, cli
- tags: neovim, colorscheme, fennel, ibm-carbon, dark-theme, light-theme

## Member repositories
- nyoom-engineering/oxocarbon.nvim (main) score 75

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:13.827998+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:48:17.710816+00:00, confidence not recorded.
  - readme: https://github.com/nyoom-engineering/oxocarbon.nvim (fetched 2026-08-28T04:05:13.827998+00:00, sha f79c598bfa19)
- Data as of 2026-08-30T08:39:29.467469+00:00.