Tessera

Cinis

“ash”

plaincalmexact

A plain graphite page with a faint lift of light in one corner.

If you like GitHub Dark or One Dark, you will feel at home here.

A flat graphite page with a soft light corner and a soft dark corner. Held still, as it is while you read.

The plate

Cinis is a neutral page with no scenery. By night it is graphite grey, by day a clean near white, both with almost no tint. A very soft lift of light rests in the top left corner and a soft shade in the bottom right, with one hairline along the top edge. While Claude works the two tones breathe so slowly you may not notice, and they hold still when the answer is ready.

While Claude works

The spinner takes one of these words in place of “Working”. When the app names the step it is on, that name stays.

  • Thinking
  • Reading
  • Working it out
  • Checking
  • Writing it down

After a turn of 20 seconds or more, Cinis plays a soft chime under a second and a half long.

With /tessera music, a quiet loop of its own plays while Claude works and stops when the answer is ready. It is off until you ask for it.

Palette

Light

  • Page #f4f7fa
  • Card #f7f9fc
  • Panel #f9fbfd
  • Text #2a2d30
  • Secondary #45484c
  • Muted #5d6165

Dark

  • Page #202225
  • Card #25272a
  • Panel #2a2c2f
  • Menu #303235
  • Text #dde0e3
  • Secondary #bbbec2
  • Muted #a0a3a7

Roles

  • Accent #78a6d5
  • Danger #cf7f7c
  • Success #7cb48a
  • Warning #d1aa6e
  • Pro #ab91c9

Measured

Standard contrast. Body text is held at 9:1 to 14:1. Here it measures 12.9:1 in light and 12:1 in dark. Calm accents.

Reading LightDark
Body text on the page 12.9:112:1
Muted text on the page 5.8:16.3:1
Page lightness 97%25%
Glass 70%, 20 pt blur70%, 20 pt blur

Contrast is the WCAG ratio. Muted text is held at 4.5:1 or better. Lightness is OKLCH, where 0% is black and 100% is white.

Install

Hang Cinis

  1. 1 In the desktop app

    Click + next to the prompt box and choose Plugins. Add the marketplace btahir/tessera, then add the tessera plugin.

    btahir/tessera

  2. 2 In a terminal session

    Paste this at the prompt.

    /plugin install tessera --marketplace btahir/tessera

  3. 3 Ask Claude

    Send this sentence in any session.

    Install the tessera plugin from the btahir/tessera marketplace on GitHub.

Then

The tessera plugin holds all twenty-five plates. Type /tessera cinis to hang Cinis. /tessera still stops the motion. Sound has three levels: /tessera quiet is silence, /tessera sound is a chime after long turns (the default), and /tessera music adds the room's own quiet loop while Claude works. Your choices are kept across sessions.

Only Cinis

Each plate also installs by its own name, and its commands use that name, such as /cinis still or /cinis music.

/plugin install cinis --marketplace btahir/tessera

Where it shows

Themes appear in the Claude Code desktop and mobile apps. The terminal keeps its own colors. The chime plays on macOS only.