/* Metric-compatible substitute fonts for the proposal-preview overlay. * * The proposal-preview renderer paints live text into holes cut in a * baked raster image of the real PowerPoint deck (Microsoft Graph * Office->PDF/PNG conversion). For overlaid text to land inside its hole * at the correct size, the browser must render each face with the exact * same glyph advance widths Graph used when producing the artwork. Real * Cambria/Calibri/Georgia/Times New Roman are Microsoft-licensed and * cannot be redistributed, so each is paired with an open-licence clone * built to be metric-compatible (same hmtx advance widths). Family names * below are the SUBSTITUTE names; the consuming CSS builds stacks like * `Cambria, Caladea, serif` so a client with the real MS font uses it and * everyone else falls back to the metric-identical clone. * * Manifest family -> Substitute -> Licence -> paragraphs using it * --------------------------------------------------------------------- * Cambria -> Caladea -> OFL 1.1 -> 89 * TimesNewRomanPSMT -> Tinos -> Apache 2.0 -> 17 * Calibri -> Carlito -> OFL 1.1 -> 5 * Georgia -> Gelasio -> OFL 1.1 -> 3 * * Verified metric compatibility (fontTools: head.unitsPerEm, hhea * ascender/descender/lineGap, hmtx advance widths for A a M m W w space * period comma one zero) against the real Microsoft font where available * on the build box (msttcorefonts): * - Tinos vs Times New Roman: unitsPerEm/ascender/descender/lineGap * AND every sampled advance width matched exactly (bit-for-bit). * - Gelasio vs Georgia: every sampled advance width matched exactly; * hhea ascender/descender do NOT match (Gelasio 1900/-700 vs Georgia * 1878/-449) -- horizontal (width) metrics are what the overlay * depends on, so this does not affect text-to-hole fit, but line-box * height is not identical. * - Caladea vs Cambria, Carlito vs Calibri: Cambria and Calibri are NOT * installed on the build box, so no direct measurement was possible. * Caladea/Carlito are the standard, widely-deployed metric clones * (Chrome OS "crosextra" fonts) published specifically to be * metric-compatible with Cambria/Calibri; taken on the strength of * that established provenance, not independently re-verified here. * * Sources (upstream URL + SHA-256 of the exact file fetched): * * Caladea (OFL 1.1) -- already installed on the build box via the Debian/ * Ubuntu package fonts-crosextra-caladea 20200211-2, not re-fetched: * Caladea-Regular.ttf sha256:f1e899278b7b4491aba5b6a8253c4b04c050cc59b21865be5c37559a775153cd * Caladea-Bold.ttf sha256:ae3cb2dcbc925809dd29d2a44e9802211cab66be541bacbfc9c08c74b27c3742 * Caladea-Italic.ttf sha256:4359a8e24f748b6447b1ff6d7a174febe70961d29f8bb8634b56dacd740a3deb * * Carlito (OFL 1.1) -- already installed via fonts-crosextra-carlito 20230309-2: * Carlito-Regular.ttf sha256:f6418f708baede9789daef5d458c0f53d2a888af9820e8062934e504fedc6595 * Carlito-Bold.ttf sha256:bb5d20f79b82599ec72983597437373a80f2d2085fa91fc144fd74e876a594db * Carlito-Italic.ttf sha256:0b019225e58d702bfedcbd35c21696769f8ee115cb6343f84c2f240312450d1c * * Tinos (Apache 2.0) -- fetched from Debian's fonts-croscore source * package (the original Chrome OS core fonts release; Google's font * catalog re-licensed its own hosted copy to OFL, so the Apache-licensed * release was sourced from Debian instead): * https://sources.debian.org/data/main/f/fonts-croscore/1.23.0-1/Tinos-Regular.ttf * sha256:ff4deb395ff2426bbd08db74cb005b22326175df00f0a156b87e6d2aef1ef508 * https://sources.debian.org/data/main/f/fonts-croscore/1.23.0-1/Tinos-Bold.ttf * sha256:60bb870b30f0ae13c61efa0cd03489cb75a6fc4123edf01853d915a4ae78c540 * https://sources.debian.org/data/main/f/fonts-croscore/1.23.0-1/Tinos-Italic.ttf * sha256:d3c5724119d7da62983433088dc200b7f553c09461643cc11ca67ea3455b368c * * Gelasio (OFL 1.1) -- fetched from the Google Fonts source repo * (google/fonts, commit 2d85e20401920891efb7cd6272d6339685df2820), as * variable fonts, then instantiated to static wght=400/700 with * fontTools varLib.instancer: * https://github.com/google/fonts/raw/2d85e20401920891efb7cd6272d6339685df2820/ofl/gelasio/Gelasio%5Bwght%5D.ttf * sha256:4daecea457258c9ebeb8bc99ed3fd24353618bfad3ea4b93fa0b5d0468fc04e4 (source variable font, wght instanced to 400 -> Regular, 700 -> Bold) * https://github.com/google/fonts/raw/2d85e20401920891efb7cd6272d6339685df2820/ofl/gelasio/Gelasio-Italic%5Bwght%5D.ttf * sha256:52559e845a4d33514e5f93bb9ae7dbeae1894a53f2c565a15f18af40cd337c09 (source variable font, wght instanced to 400 -> Italic) * * All four families were then subsetted per-face with fonttools * pyftsubset (unicode ranges below, --layout-features='*' to keep * kerning/ligatures -- they affect advance widths) and converted to * WOFF2. Bold-italic is not shipped: no manifest paragraph combines * bold+italic, and browsers synthesise it from Bold + oblique. * * This file lives under public/ (not src/assets), matching * fonts/google/fonts.css and fonts/signature-fonts.css, so webpack's * css-loader does not try to resolve the url() paths at build time -- * they are absolute runtime URLs served alongside the WOFF2 files. */ /* ── Cambria substitute ───────────────────────────────────────────── */ @font-face { font-family: 'Caladea'; font-style: normal; font-weight: 400; font-display: swap; src: url('./caladea-regular.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20A0-20BF, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; } @font-face { font-family: 'Caladea'; font-style: normal; font-weight: 700; font-display: swap; src: url('./caladea-bold.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20A0-20BF, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; } @font-face { font-family: 'Caladea'; font-style: italic; font-weight: 400; font-display: swap; src: url('./caladea-italic.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20A0-20BF, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; } /* ── TimesNewRomanPSMT substitute ─────────────────────────────────── */ @font-face { font-family: 'Tinos'; font-style: normal; font-weight: 400; font-display: swap; src: url('./tinos-regular.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20A0-20BF, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; } @font-face { font-family: 'Tinos'; font-style: normal; font-weight: 700; font-display: swap; src: url('./tinos-bold.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20A0-20BF, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; } @font-face { font-family: 'Tinos'; font-style: italic; font-weight: 400; font-display: swap; src: url('./tinos-italic.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20A0-20BF, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; } /* ── Calibri substitute ───────────────────────────────────────────── */ @font-face { font-family: 'Carlito'; font-style: normal; font-weight: 400; font-display: swap; src: url('./carlito-regular.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20A0-20BF, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; } @font-face { font-family: 'Carlito'; font-style: normal; font-weight: 700; font-display: swap; src: url('./carlito-bold.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20A0-20BF, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; } @font-face { font-family: 'Carlito'; font-style: italic; font-weight: 400; font-display: swap; src: url('./carlito-italic.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20A0-20BF, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; } /* ── Georgia substitute ───────────────────────────────────────────── */ @font-face { font-family: 'Gelasio'; font-style: normal; font-weight: 400; font-display: swap; src: url('./gelasio-regular.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20A0-20BF, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; } @font-face { font-family: 'Gelasio'; font-style: normal; font-weight: 700; font-display: swap; src: url('./gelasio-bold.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20A0-20BF, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; } @font-face { font-family: 'Gelasio'; font-style: italic; font-weight: 400; font-display: swap; src: url('./gelasio-italic.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20A0-20BF, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }