> ## Documentation Index > Fetch the complete documentation index at: https://docs.glassine.ink/llms.txt > Use this file to discover all available pages before exploring further. # Looks > How Glassine looks is one setting: a look. Eight built in, yours to copy and change, one file to share. ![Settings → Look: tiles of the looks, the chosen one's folds showing through the card](https://mintcdn.com/glassine/9vbZ3Sw8oOnGeVCV/images/backdrops.jpg?fit=max\&auto=format\&n=9vbZ3Sw8oOnGeVCV\&q=85\&s=92a51f7f47d4133d0ed21ba5e5b5e677) Everything about how the window looks — the colours of the page, the glass it is set in, and the folds of colour (or the desktop) behind the glass — is one thing, a **look**. Settings → Look is the one section for it: the looks as tiles at the top, and under them the makings of the look on screen. Pick a tile and the whole window follows at once, Review's Glass style included. View → Look and *Look: …* in the ⌘K command bar do the same from anywhere; ⌘Z in Settings takes a whole look back as one step. ## Built in Eight, Soft Sky first — the one the app comes with. | Look | | | - | - | | **Soft Sky** | A cool page on a deep violet-blue night. The default. | | **Slate** | Warm text and a copper accent on the quietest grey. | | **Deep Water** | Blues and teals, deep. | | **Pine** | Green-black, with a lime accent. | | **Plum** | Violet glass over violet folds, with a cyan accent. | | **Umber** | Warm darks, a terracotta accent. | | **Linen** | A light page on warm, pale folds. | | **Desktop** | The wallpaper, blurred, behind the glass — the way the first versions looked. | The dark looks keep their folds deep: three colours each, near each other on the wheel, so a look reads as one sky, one water, one wood rather than a spill of everything. ![Glassine in a light look](https://mintcdn.com/glassine/7Mp37bdq1l_ZGnAL/images/light.jpg?fit=max\&auto=format\&n=7Mp37bdq1l_ZGnAL\&q=85\&s=df9f7e261b65398783395ad0841e7c6f) ## Following the system Settings → Look → Appearance. *Always the chosen look* keeps whatever you picked. *Follow the system* takes one light look and one dark look — Linen and Soft Sky to begin with — and switches between them when macOS does. ## Your own Built-in looks cannot be edited, but any of them can be the starting point. **1. Duplicate** Click the tile closest to what you want and press **Duplicate**. A copy appears under *Mine*, goes on at once, and everything under it unlocks. **2. Change, and watch** Everything you change is live in the window behind the card — every colour, the glass, the folds — so you can judge it on your own text. A look of yours is edited in place; there is nothing to save. **3. Name it, or let it go** The name is the first row. **Delete** removes a look of yours. ### What you can change **Name**, and whether it is a **dark appearance** — a dark page over deep folds, or a light page over pale ones. (This also decides the GitHub Review style's colours, and which slot the look fills when following the system.) **The page.** Nine colours: Text, Headings, Accent, Markdown syntax, Quotes, Code, Links, Caret and Selection. The accent is the most visible: it colours tags, date capsules, task boxes, the star, the selected sidebar row and, unless you set one, the caret. Then the glass the page is set in — its **material**, from a list: | Material | | | - | - | | Soft glass | The standard window blur | | Deep glass | Darker and blurrier | | Sidebar glass | The blur macOS uses for sidebars | | Thin glass | Lets more of the desktop through | | Frosted | A light haze | | Opaque | No blur at all; the tint colour, solid | Then the **tint** colour, **tint strength** (how much of the blur it covers), and **sidebar tint** (how strongly the sidebar's own darker tint is applied). **Behind the glass.** *Folds of colour* or *The desktop*. The folds are a set of three to five colours, in wells: change any, remove one (down to three) or add one (up to five). All of them are on screen at once — the folds run round the set in this order, so each colour has folds of its own. Hue and saturation are what count; the first colour also tints the ground. Every backdrop takes its lightness from the theme, and is built dark first: on a dark theme the ground is close to black and the colour lives in the folds, deep rather than bright, so pale text stays readable over every part of it; a light theme gets the same folds as a pale morning. The theme's tint and grain still lie over it, and the sidebar is a veil over it. The folds are drawn by a small program on the graphics processor — a field of noise warped through itself, read as bands and lit — at a quarter of the window's size, since there is nothing sharp in them, so they cost the writing nothing. **Drift** moves the folds, slowly — the picture a few minutes from now is a different one, but no moment of it moves enough to catch the eye. Twenty frames a second while the window can be seen, none while it is covered. Off under Reduce Motion, and off with the switch: a still picture then. **Frost** pales and softens the colour, the way frosted glass does — gently at first, since a little haze goes a long way over a dark ground, and all the way at 100%: at 0 the folds are as deep as they get; at 30%, the default, they are barely touched; at 100% they are a soft tint under a veil of light, their edges gone. **Paper grain** lies over the folds the way a theme's grain lies over the desktop's blur — a fine, still texture that keeps the colour from looking like a render. It is a setting of its own here rather than the theme's, since silk wants more of it than glass: 8% is the default, against the themes' 4 or 5. With the desktop behind the glass instead, the window is a blur of whatever is behind it — the wallpaper, and the windows behind — under the page's own **paper grain**. ## Sharing a look **Export…** writes the look on screen to a file, `Name.glassinelook.json`, with everything it needs inside — the page's colours and glass, and the folds — so the file is the whole look whatever is on the other Mac. **Import…** reads one: it joins *Mine* and goes on at once. A file is easy to keep in a dotfiles repo, send to someone, or post. ## Before looks Until October 2026 the page's colours (a *theme*) and what lay behind the glass (a *backdrop*) were two settings, chosen apart. Anything you made then is still here: each custom theme and each custom set became a look of its own in *Mine* on the first launch with looks, named as it was, and the pairing you were using became one too if no built-in look matched it. A theme exported in the old format still imports, as a look over the folds of the moment. This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.