The logotype is drawn with wide spacing — handsome on a website, and a
third of the panel's header width spent on nothing. The spacing is
artwork, not typesetting, so no property adjusts it; but every pixel
column between two letters is blank, and a blank column carries no
shape. Dropping most of them moves the letters together without altering
a single letterform.
At the same 260px the capitals are now a third taller, which the
hairlines needed more than the spacing did: the A of ITA reads at a
glance instead of being rescued by a threshold.
Done at full resolution, before the downscale. Compressing columns that
are already an average of ink and paper would smear exactly the strokes
this logo can least afford to lose.
The rendered size is now read from the PNG's own header rather than kept
as a constant beside it. The spacing is adjustable and every value
changes the height; a number copied into the renderer would have drifted
and squashed the logo with nothing failing to say so.
`npm run brand:variants` renders the spacings side by side, magnified,
since this is a decision to be looked at rather than reasoned about.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012cSY9pVhZmJUKNN7wf1Myd
With the move to BYOS there is no TRMNL cloud to interpret a Liquid
template, so the application draws the screen itself.
The pipeline is satori (flexbox to SVG) then resvg (SVG to pixels) then
a hand-written 1-bit encoder. Chromium was the alternative and was
rejected: half a gigabyte and a real memory appetite in the runtime
image, for a screen of eight blocks. Playwright still handles the E2E
tests, in its own pinned image, never in the application one.
The payoff is testability. The layout is asserted on the element tree
and the geometry on the SVG text, so a rendering regression shows up as
a readable diff instead of a pixel comparison. The BMP and PNG encoders
are verified field by field against their specifications, including an
independent CRC-32 for the PNG: a device rejecting a malformed image is
expensive to debug from a shop window.
Two properties are pinned because the battery depends on them: the same
payload must produce byte-identical output, and changed hours must
produce different output. The filename handed to the device is a hash of
these bytes, and the firmware skips the redraw when it is unchanged.
The fonts are vendored into public/fonts and the logo into public/brand,
both committed. Rendering must not depend on an install tree, a CDN or
the network, or the bytes drift and the panel wakes for nothing.
`npm run screen:preview` writes a real 1-bit image plus a magnified view,
which is where clipping and thin strokes give themselves up. That is how
the week strip was caught clipping and condensed.
`npm run brand` rebuilds the assets: it locates the wordmark band in the
shop logo rather than hard-coding offsets a future revision would break,
and thresholds it with the panel's own encoder. sharp is a devDependency
used only there; nothing at runtime needs it.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012cSY9pVhZmJUKNN7wf1Myd
vliaudatandClaude Opus 5