A reading room after dark. A 1923 Bauhaus poster. A 1984 desktop in true 1-bit. A theme restyles all of Solomon, from the page and the sidebars to the tabs and the graph, while your notes stay the same plain files underneath.
Every theme is a folder: a stylesheet, a short manifest, and the typefaces and pictures it ships. No code runs, ever.
Pick one in the Store inside Solomon, choose it in Settings, and go back to the default look whenever you like.
A theme changes how Solomon looks, never what you wrote. Exports and printing are always unthemed.
Every picture is the same vault: a long essay open beside the draft it feeds. Open a theme to see its structure and graph views too.


Evening by day, in ink on plaster

A night-sky star atlas; the note a gold double-ruled plate

A 1925 lobby directory in black lacquer and brass

A 1923 exhibition poster; square, triangle and circle as the information system

Every note the front page of a daily paper; two-column reading view

The vault as surveyed territory; the note the map's cartouche

The note as an opening title card between letterbox bars

One engineering drawing sheet in Prussian blue

The opening spread of a feature in a luxury quarterly

A 1978 line-printer listing on one strict line grid

The window as a lens over the real desktop (macOS)

A Sottsass furniture ensemble, Milan 1981

A tiled Hyprland session in Tokyo Night

An honest HTML 3.2 document, tags hung in the margin

The note rung up on a point-of-sale terminal

A two-drum riso zine in fluorescent pink and teal

A departures hall at night, labels on split-flap blades

The so.lomon.dev landing page as the room you write in

A printer's colour-matching fan deck

A Müller-Brockmann poster on a visible twelve-column grid

A 1984 desktop at 2×, true 1-bit

A Japanese magazine page; vertical tiers in the reading view

A subway system signed the way Vignelli signed New York

A 1999 rave flyer in acid lime and volt blue
Solomon publishes the names a theme may style: the regions of the window, the states they pass through, and the colour and type tokens underneath. Write CSS against those names, bundle your fonts and pictures beside it, and describe it in a theme.json. Solomon checks the package before it applies anything.
Pictures can pass through Solomon’s own press, which dithers a photograph into dots at load in the theme’s inks, so one file serves light and dark and every width. Drop the folder into your vault’s Themes/ folder to use it yourself, or submit it to the Store.
Themes/evening/ theme.css the look theme.json modes, the room, plates, settings item.json the Store listing CREDITS.md who made what, and the licence assets/ hall.jpg Bates Hall, 1896, public domain puvis-*.jpg four margin plates fonts/*.woff2 three OFL faces, licences beside