Alien

A deep-space terminal theme for Obsidian. The black of deep space, the green phosphor glow of an old CRT ship-computer, acid lime, and hazard amber — with a red alert held back for errors and unresolved links.

Palette

H1–H3 carry the phosphor-green glow; H4–H6 fall back to scanner cyan and vapor grey so heading hierarchy stays legible at a glance.

Install

Manually

1. Copy this folder into your vault at <vault>/.obsidian/themes/Alien/ — the folder must contain manifest.json and theme.css.
2. In Obsidian: Settings → Appearance → Themes → Alien.

From the community directory

Not yet listed. PRs welcome.

Compatible with

• Obsidian 1.4+
• Default core plugins (Graph, Outline, Tags, Search, Bookmarks)
• Light mode included (powered down — softened green + amber daylight)

Notes

• Headings, links, tags, and the active tab glow in CRT phosphor green.
• Code blocks use a near-black terminal background with green keywords, acid-lime strings, and amber numbers.
• Blockquotes get a green left bar and a faint glow — the terminal "signal" motif.
• Highlights (==text==) use hazard amber, like a warning strip.
• Red alert is reserved for unresolved links and destructive actions, so it stays meaningful when you see it.