Programming Mono

A sharp, monospace Obsidian theme built for programmers — zero border radius, JetBrains Mono everywhere, and a restrained syntax-inspired accent palette for both dark and light mode.

Author: SATOSprod
License: Proprietary — see LICENSE

Preview

Why Programming Mono?

Most Obsidian themes are built around rounded corners and a proportional UI font, which feels out of place for anyone who spends their day in a code editor. Programming Mono flips that: every corner is square, every font — interface, text, and code — is monospace, and the accent colors are picked to double as a readable syntax-highlighting palette. The result is a vault that looks and feels like an IDE.

Features

• Full monospace UI — interface, editor text, and code all use JetBrains Mono (falls back to Fira Code, Cascadia Code, ui-monospace)
• Zero border radius — buttons, tabs, inputs, modals, panes, and scrollbars are all perfectly square
• Dark and light variants — both built from the same warm, low-contrast neutral palette
• Four-color accent system — headings H1–H4 each get a distinct accent color, reused consistently across links, tags, and code syntax
• Syntax-highlighting-aware colors — --code-keyword, --code-string, --code-function, --code-comment, etc. are mapped so inline code and code blocks read like a real editor
• Flat, minimal chrome — no shadows, no gradients, no rounded pills — just borders and flat fills
• Custom scrollbars — square, low-profile scrollbars matching the rest of the UI

Requirements

• Obsidian 1.7.2 or later
• Works on desktop and mobile

Installation

From Community Themes

1. Open Settings → Appearance → Themes.
2. Click Manage next to Themes.
3. Search for Programming Mono.
4. Click Install and use.

Manual installation

1. Download the latest release from the Releases page, or clone the repository:

git clone https://github.com/SATOSprod/programming-mono.git

2. Copy the theme folder into your vault:

<your-vault>/.obsidian/themes/programming-mono/
├── theme.css
└── manifest.json

3. Open Obsidian → Settings → Appearance → Themes and select Programming Mono.

Usage

1. Install the theme using one of the methods above.
2. Open Settings → Appearance.
3. Under Base color scheme, choose Dark or Light — Programming Mono ships full support for both.
4. Under Themes, select Programming Mono.
5. For the full intended look, pair the theme with a monospace font family such as JetBrains Mono installed on your system — the theme already references it by name and will fall back gracefully if it isn't installed.

Color Palette

Dark mode

Light mode

Accents (shared hues, adjusted per mode)

Configuration Notes

File Structure

programming-mono/
├── theme.css
├── manifest.json
├── assets/
│   ├── 1.png
│   └── 2.png
├── cover.png
├── LICENSE
└── README.md

How It Works

1. The theme defines a small set of raw palette variables (--bg, --bg-alt, --bg-code, --border, --text, --accent-1..4) separately for .theme-dark and .theme-light.
2. Every Obsidian CSS variable (--background-primary, --text-normal, --interactive-accent, --code-*, --h1-color … --h6-color, etc.) is mapped from that small palette, so the whole theme can be re-tuned by editing a handful of values.
3. A second block of rules forces border-radius: 0 across buttons, tabs, inputs, modals, and panes to enforce the theme's square-corner identity regardless of Obsidian's own defaults.
4. Syntax-relevant variables (--code-keyword, --code-string, --code-function, --code-comment, --code-tag, --code-value, --code-property) reuse the same four accents so inline code, code blocks, and headings feel visually consistent.
5. All rules are scoped under .theme-dark and .theme-light, so switching Obsidian's base color scheme swaps the full palette instantly with no extra configuration.

Screenshots

License

This project is released under a proprietary license.
Copying source code into other projects is not permitted.
See LICENSE for full terms.

© 2026 SATOSprod