Vitrail is a studio for designing stained-glass windows, not a puzzle to solve.
You begin with a frame — a rectangular grid, a rose window, a gothic lancet — and you fill the leaded sections with coloured glass. Sections can be split when a design wants more detail and merged when it wants less. A symmetry helper keeps a rose balanced. A backlight switch shows the whole piece lit from behind, which is the only honest way to judge a window, because glass seen in reflected light is a different material from glass seen in transmitted light.
Each finished window is kept in a personal gallery with its layout and its glass, so it can be reopened, refined, or copied so a second colourway can be tried without disturbing the first. Templates give you somewhere to start when an empty frame is too much to face. Everything runs offline, with no account and no advertising, and the glass and frame textures are built into the installed app rather than fetched on first launch.
Cut a window into four times as many pieces and you do not lay four times as much lead. You lay twice.
Glass area is fixed by the frame. Everything else in a leaded window scales with how finely it is divided — and not all of it at the same rate. Lead came follows the square root of the piece count, soldered junctions follow the count itself, and the glass edge you cut settles into a fixed ratio against the lead that has nothing to do with the shape of the window. Move the sliders and watch the three disagree.
At 12 divisions the window holds 144 pieces, 15.60 m of came and 338 solder joints — and you will have cut 28.80 m of glass edge to feed it, 1.85 times the lead. Double the divisions and the pieces quadruple, the joints very nearly quadruple, but the lead only doubles.
Every interior edge is cut twice — once on each side of the lead — and the frame edge only once. That single fact drags the last figure towards 2 from below and holds it there, whichever shape you pick.
Not on this page: the app's glass textures, its palettes, its templates, its gallery and the way its backlight renders colour. The arithmetic above belongs to leaded glass as a craft and can be checked with a ruler on any real window. It says nothing about how Vitrail feels to use.
Four plain statements about the release.
Nothing is waiting at the other end of a connection, because there is no other end. Flight mode and a home router produce identical behaviour.
There is nothing to join. The gallery is a folder the app keeps to itself on your handset, and it answers to you rather than to a login.
Neither an ad network nor a measurement library is compiled into the release. If that ever ceases to be true, the policy is rewritten first and the build ships afterwards.
Yours, and staying where you made them. Nobody here has ever seen one, for want of anything that would carry it.
Who publishes this
Owner: Anna-Marie Fox
Liljeveien 11C, 1487 Hakadal, Norway
Mail: bly@designerfox.space
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