CosmicSeaFox448 downloadsA handcrafted Obsidian theme inspired by black opal crystals, underground caves, and knowledge archives. Designed for comfortable reading, focused writing, and long-term low-glare use.
A handcrafted Obsidian theme inspired by black opal crystals, underground caves, and knowledge archives.
Designed for:

If you enjoy this theme and want to support future development:

Deep obsidian background with black opal crystal atmosphere.

Soft mineral surface with transparent crystal panels.

Optimized typography and spacing for comfortable long sessions.

Clean writing environment with reduced distractions.

Crystal network visualization inspired by underground formations.

Readable archive-style tables with balanced contrast.

Metadata displayed as crystal information panels.

Soft readable code presentation without harsh contrast.

Custom crystal knowledge chambers.
| Feature | Description |
|---|---|
| 🌑 Dark Mode | Black opal cave atmosphere |
| ☀️ Light Mode | Soft mineral glass interface |
| 📖 Reading Mode | Comfortable long-form reading |
| ✍️ Source Mode | Clean writing experience |
| 💎 Crystal System | Custom opal color variations |
| 📝 Callouts | Crystal archive styles |
| 📊 Tables | Balanced readable design |
| 💻 Code Blocks | Soft low-glare code panels |
| 🗂 Properties | Metadata crystal cards |
| 🕸 Graph View | Crystal network visualization |
| 🏷 Tags | Opal badge styling |
| ☑ Tasks | Custom crystal checkboxes |
| 📅 Calendar | Timeline crystal design |
| 📱 Mobile | Responsive support |
Geode Black Opal includes multiple crystal personalities:
| Crystal | Style |
|---|---|
| Black Opal | Cyan crystal glow |
| Quartz | White crystal |
| Sapphire | Blue crystal |
| Emerald | Green crystal |
| Amethyst | Purple crystal |
| Citrine | Golden crystal |
| Diamond | Ice crystal |
Download this repository.
Copy:
Geode-Black-Opal
into:
YourVault/.obsidian/themes/
Settings → Appearance → Themes
Geode Black Opal
Geode-Black-Opal/
├── theme.css
├── manifest.json
├── README.md
├── LICENSE
├── screenshot.png
│
└── screenshots/
├── dark.png
├── light.png
├── reading.png
├── source.png
├── graph.png
├── table.png
├── properties.png
├── code.png
└── callouts.png
| Purpose | Font |
|---|---|
| Body | Inter |
| Headings | Cormorant Garamond |
| Code | JetBrains Mono |
| Feature | Status |
|---|---|
| Obsidian Desktop | ✅ |
| Obsidian Mobile | ✅ |
| Reading Mode | ✅ |
| Source Mode | ✅ |
| Live Preview | ✅ |
| Graph View | ✅ |
| Properties | ✅ |
| Tables | ✅ |
| Callouts | ✅ |
| Code Blocks | ✅ |
| Dataview | ✅ |
| Tasks | ✅ |
Geode Black Opal focuses on:
Created for:
Features:
Features:
Fonts:
Made for the Obsidian community.
MIT License
Made with ❤️ for writers, researchers, and knowledge explorers.
If you enjoy this theme and want to support future development: