Periphery

Cold governs; amber only warns.

The same two axes with the roles swapped. Cyan takes the accent, so the desktop reads calm, and amber is demoted to warning and error, so the things that are wrong read hot. The quietest theme of the set, and the one built for long sessions.

It is also the only one that spends its accent on a cold colour. Every other theme here puts the warm hue in front. Pick this one if you want the desktop to stop asking for attention.

Install

omarchy theme install https://github.com/r-bart/omarchy-periphery-theme.git
omarchy theme set periphery

Or use Install > Style > Theme in the Omarchy menu, then pick Periphery under Style > Theme (Super + Ctrl + Shift + Space).

Requires Omarchy 4. The palette uses the semantic key set, which does not exist in 2.x.

Palette

Key	Value
accent	#7fc9c4
background	#060f12
lighter_background	#0f2129
foreground	#a9c0bf
bright_foreground	#e0efec
selection	#17333a
muted	#5c7876

Window borders come from hyprland_active_border, which Hyprland and every shell card share. palette-check.png renders the whole palette into a simulated bar, terminal, menu and notification, if you want to judge the colour relationships without installing anything.

Contrast

WCAG relative luminance, against both surfaces a theme renders text on. lighter_background is where tooltips, floats, status lines and Neovim's NormalFloat sit — the surface most palettes forget to check.

	on background	on lighter_background
foreground	10.12	8.65
bright_foreground	16.34	13.96
accent	10.19	8.70
green	7.69	6.57
cyan	10.19	8.70
blue	6.54	5.59
magenta	6.40	5.46
red	5.27	4.51
muted	4.06	3.47

Every chromatic clears 4.5:1 on both. Body text clears 10:1.

What it ships

colors.toml, icons.theme and backgrounds/. Nothing in this repository runs on your machine: no neovim.lua, no terminal config, no vscode.json.

Half a choice. Those three would be dropped whatever this repository did: a theme installed from a repo keeps only what is colour. The choice is the rest — a theme can ship shell.toml, btop.theme or helix.toml, and Omarchy keeps them, because omarchy-theme-set-templates only renders a template when the output file does not already exist. Leaving them out is what makes the entire desktop fall out of the palette, window borders included — and it is also why shell.toml is left to Omarchy's template, so this theme keeps picking up shell improvements on each release instead of pinning a snapshot.

No Hyprland config either, and that one is not a choice. Omarchy reads none from a theme directory, and omarchy theme install drops every .lua a cloned theme ships. The window metrics this design was drawn against are in Window metrics, to paste in yourself.

Backgrounds

Five, cycled with Super + Ctrl + Space. The same five ship with every theme in this set; only the order differs. Omarchy picks the first in sort order, unless the background you were already on shares its filename with one of these — then it advances to the next, because omarchy-theme-set cycles from the current entry.

File	Scene
1-flow.jpg (default)	Cosmic flow, warm filaments. Same caveat as the dune.
2-crescent.webp	Crescent over a planet’s limb, orange atmosphere. The upper-left is nearly empty, so windows land on black.
3-gate.jpg	Monolith with a vertical seam of light, a crescent in the upper left. The seam is near-white and dead centre, where the menu opens.
4-dune.webp	Risograph halftone dune. High contrast centre-left; best at full window opacity.
5-arch.jpg	A lit concrete shell on a frozen shore under a vast crescent planet. Everything bright sits in the lower third; the sky above is flat, so windows land clean.

Two formats, and the reason is weight. Everyone who installs the theme clones backgrounds/ in full, and a wallpaper is decoded to the same framebuffer whatever it weighs. The two heaviest scenes are WebP and fall from 5.43 MB to 2.39 MB together. The other three are already under 2.2 MB and stay JPEG.

WebP is safe on Omarchy 4, and it was not always. qt6-imageformats — the Qt decoder Quickshell needs — reached the base package list on 19 August 2026, through the Add webp decoding to the shell migration. 79 of the 92 backgrounds Omarchy itself ships are now .webp, and omarchy-theme-set lists .webp among the extensions it accepts. On an install that predates the migration and has never updated, a WebP wallpaper fails at Error decoding: ... Unsupported image format and leaves a black desktop. Updating Omarchy is the fix.

All five are 2912×1632. The JPEGs are quality 95, baseline, with no chroma subsampling. Full chroma matters here. Every scene sets a saturated warm edge against a cold field, and 4:2:0 softens that edge. macOS sips writes 4:4:4 only at quality 100, which triples the file for no visible gain. These were built with cjpeg -quality 95 -sample 1x1 -optimize. The WebPs were re-encoded from them, capped at 4K wide, with magick input.jpg -strip -resize '3840>' -quality 82 output.webp.

Add your own in ~/.config/omarchy/backgrounds/periphery/ — they appear alongside these.

Window metrics

Not part of the theme. Omarchy never reads a Hyprland config from a theme directory; the only thing a theme sends the compositor is hyprland_active_border. To match the design, paste the block below into ~/.config/hypr/looknfeel.lua, which is loaded after both Omarchy's defaults and the active theme, so it wins over both.

This repository ships no .lua of its own, and none would survive if it did. omarchy theme install stages only what is colour and drops every .lua a cloned theme ships — a theme's Lua is code the compositor would run at login, and installing someone's theme should change what your desktop looks like, never what it runs. The block below is the whole of it, so this README stands on its own.

hl.config({
  decoration = {
    rounding_power = 4,

    -- The 0.05 gap is what marks the focused window.
    active_opacity = 0.90,
    inactive_opacity = 0.85,

    -- Translucency without blur makes text unreadable over these wallpapers.
    blur = {
      enabled = true,
      size = 6,
      passes = 2,
    },

    shadow = {
      enabled = true,
      range = 20,
      render_power = 4,
      color = "rgba(060f1299)",
      color_inactive = "rgba(060f1266)",
    },
  },
})

Omarchy 4 configures Hyprland in Lua, not .conf, and there is no ~/.config/hypr/hyprland.conf. Corner rounding is a machine-level setting that each person picks for themselves in ~/.config/hypr/looknfeel.lua, not something a theme has any say in. Omarchy ships 0; this palette is agnostic either way.

Worth knowing if you change it: the shell mirrors Hyprland's decoration:rounding into its own card corners, so rounding your windows also rounds the menu, launcher, notifications and tooltips. And it only re-reads that value on startup, on a theme change, and on the omarchy toggle window-gaps flag — a hand-edited looknfeel.lua plus hyprctl reload rounds the windows while the shell keeps the old radius until you re-apply a theme or restart it.

The rest of the set

Same five wallpapers, different palette over them.

Theme
Terminus	Navy ground, gold accent.
Vault	Warm sepia ground, orange accent.
Starsend	Near-black ground, one amber signal.

License

MIT. See LICENSE.