From 41ef1d89b3856736a50999b0ac24ae87c4e5a687 Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Tue, 14 Jul 2026 12:59:30 +0000
Subject: [PATCH] feat(ui): add the OpenTimestamps logo as a custom glyph and
 use it in the OTS pill

Bake the official OpenTimestamps stamp logo (traced from
opentimestamps/logo vector.svg; monochrome outline, tinted at render
time like every other glyph) into the Material Symbols subset font at
U+F8F0. New tools/material-symbols-subset/add_custom_glyphs.py converts
the traced SVGs in custom/ into TrueType glyphs and is invoked by
subset.sh after pyftsubset, so font regenerations keep them.

With the logo identifying the pill, drop the verbose "OTS:" prefix:
the pill now reads icon + "2y" (or icon + "Pending", new
R.string.pending).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AgEpNtwnetPhETXQSdq4b5
---
 .../amethyst/ui/note/elements/DisplayOts.kt   |   8 +-
 amethyst/src/main/res/values/strings.xml      |   1 +
 .../font/material_symbols_outlined.ttf        | Bin 464004 -> 466160 bytes
 .../commons/icons/symbols/MaterialSymbols.kt  |   6 +
 tools/material-symbols-subset/README.md       |  12 ++
 .../add_custom_glyphs.py                      | 104 ++++++++++++++
 .../custom/opentimestamps.svg                 | 130 ++++++++++++++++++
 tools/material-symbols-subset/subset.sh       |   4 +
 8 files changed, 261 insertions(+), 4 deletions(-)
 create mode 100644 tools/material-symbols-subset/add_custom_glyphs.py
 create mode 100644 tools/material-symbols-subset/custom/opentimestamps.svg

diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/note/elements/DisplayOts.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/note/elements/DisplayOts.kt
index 319293d69c..ea62ebdb9d 100644
--- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/note/elements/DisplayOts.kt
+++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/note/elements/DisplayOts.kt
@@ -61,8 +61,8 @@ fun DisplayOts(
             }
 
             HeaderPill(
-                symbol = MaterialSymbols.CheckCircle,
-                text = stringRes(R.string.existed_since, timeStr),
+                symbol = MaterialSymbols.OpenTimestamps,
+                text = timeStr,
                 contentDescription = stringRes(R.string.ots_info_title),
                 onClick = {
                     accountViewModel.toastManager.toast(
@@ -75,8 +75,8 @@ fun DisplayOts(
         },
         whenPending = {
             HeaderPill(
-                symbol = MaterialSymbols.Schedule,
-                text = stringRes(id = R.string.timestamp_pending_short),
+                symbol = MaterialSymbols.OpenTimestamps,
+                text = stringRes(id = R.string.pending),
                 contentDescription = stringRes(R.string.ots_info_title),
             )
         },
diff --git a/amethyst/src/main/res/values/strings.xml b/amethyst/src/main/res/values/strings.xml
index a3ef6e6b7d..71c5cba0c2 100644
--- a/amethyst/src/main/res/values/strings.xml
+++ b/amethyst/src/main/res/values/strings.xml
@@ -45,6 +45,7 @@
     <string name="timestamp_it">Timestamp it</string>
     <string name="timestamp_pending">Timestamp: Pending Confirmations</string>
     <string name="timestamp_pending_short">OTS: Pending</string>
+    <string name="pending">Pending</string>
     <string name="request_deletion">Request Deletion</string>
     <string name="block_report">Block / Report</string>
     <string name="block_hide_user"><![CDATA[Block & Hide User]]></string>
diff --git a/commons/src/commonMain/composeResources/font/material_symbols_outlined.ttf b/commons/src/commonMain/composeResources/font/material_symbols_outlined.ttf
index 01bd58472eab53e9922f2ac64092cd463a60370c..fde397e9efc2d552e8205b3b0ec61759f5f3a6df 100644
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diff --git a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/icons/symbols/MaterialSymbols.kt b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/icons/symbols/MaterialSymbols.kt
index a038c5603d..7ef5919971 100644
--- a/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/icons/symbols/MaterialSymbols.kt
+++ b/commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/icons/symbols/MaterialSymbols.kt
@@ -167,6 +167,12 @@ object MaterialSymbols {
     val Numbers = MaterialSymbol("\uEAC7")
     val OpenInBrowser = MaterialSymbol("\uE89D")
     val OpenInFull = MaterialSymbol("\uF1CE")
+
+    // Custom glyph (not part of Google's Material Symbols): the OpenTimestamps
+    // stamp logo, baked into the subset font by
+    // tools/material-symbols-subset/add_custom_glyphs.py from custom/opentimestamps.svg.
+    val OpenTimestamps = MaterialSymbol("\uF8F0")
+
     val Paid = MaterialSymbol("\uF041")
     val PanTool = MaterialSymbol("\uE925")
     val Pause = MaterialSymbol("\uE034")
diff --git a/tools/material-symbols-subset/README.md b/tools/material-symbols-subset/README.md
index c6f689020b..9db8fea879 100644
--- a/tools/material-symbols-subset/README.md
+++ b/tools/material-symbols-subset/README.md
@@ -54,3 +54,15 @@ Commit the regenerated `.ttf` alongside the `MaterialSymbols.kt` change.
 glyph and OpenType feature not reachable from those codepoints, and rewrites
 `name`, `cmap`, and `GSUB` tables accordingly. The Compose resource pipeline
 treats the result as a normal TTF — no code changes needed.
+
+## Custom glyphs
+
+`custom/` holds traced SVG outlines for icons the upstream font will never
+carry (third-party logos — currently the OpenTimestamps stamp).
+`add_custom_glyphs.py` bakes them into the subset TTF at end-of-PUA
+codepoints (U+F8F0 and up); `subset.sh` runs it automatically after
+`pyftsubset`, so regenerating the subset keeps them. To add one: trace the
+logo to a single-color SVG (potrace output works as-is), drop it in
+`custom/`, register it in the `CUSTOM` map in `add_custom_glyphs.py`, add the
+matching `MaterialSymbol("\uF8Fx")` to `MaterialSymbols.kt`, and rerun
+`subset.sh` (or `add_custom_glyphs.py <ttf>` to patch the existing font).
diff --git a/tools/material-symbols-subset/add_custom_glyphs.py b/tools/material-symbols-subset/add_custom_glyphs.py
new file mode 100644
index 0000000000..158c98e438
--- /dev/null
+++ b/tools/material-symbols-subset/add_custom_glyphs.py
@@ -0,0 +1,104 @@
+#!/usr/bin/env python3
+"""Append custom (non-Material) glyphs to the subset Material Symbols font.
+
+Some icons Amethyst needs are third-party logos that Google's Material
+Symbols font will never carry (e.g. the OpenTimestamps stamp). Their traced
+SVG outlines live in `custom/` and this script bakes them into the subset
+TTF at private-use codepoints, so `MaterialSymbols.kt` can reference them
+exactly like any Material glyph.
+
+subset.sh runs this automatically after pyftsubset; it can also be run
+directly against an existing font:
+
+    python3 add_custom_glyphs.py <path-to-ttf>
+
+The SVGs are potrace output: the raw path coordinates are y-up already (the
+file's group transform re-flips them for SVG display), so they map into font
+space with a plain uniform scale + translate.
+"""
+
+import os
+import re
+import sys
+
+from fontTools.pens.boundsPen import BoundsPen
+from fontTools.pens.cu2quPen import Cu2QuPen
+from fontTools.pens.transformPen import TransformPen
+from fontTools.pens.ttGlyphPen import TTGlyphPen
+from fontTools.svgLib.path import parse_path
+from fontTools.ttLib import TTFont
+
+HERE = os.path.dirname(os.path.abspath(__file__))
+
+# codepoint -> (glyph name, traced SVG). Keep codepoints at the very end of
+# the BMP private-use area (U+F8xx tail) to stay clear of the range Material
+# Symbols actually allocates.
+CUSTOM = {
+    0xF8F0: ("opentimestamps", os.path.join(HERE, "custom", "opentimestamps.svg")),
+}
+
+# Fit content into the same square Material Symbols draw in (its check_circle
+# glyph spans 80..880 in a 960 upm font). Scaled to the font's real upm.
+BOX_MIN_FRAC = 80 / 960
+BOX_MAX_FRAC = 880 / 960
+
+
+def svg_path_data(svg_file):
+    with open(svg_file, "r", encoding="utf-8") as f:
+        svg = f.read()
+    return re.findall(r'<path[^>]*\bd="([^"]+)"', svg)
+
+
+def draw_svg(paths, pen):
+    for d in paths:
+        parse_path(d, pen)
+
+
+def build_glyph(paths, upm):
+    # First pass: raw outline bounds.
+    bounds = BoundsPen(None)
+    draw_svg(paths, bounds)
+    x_min, y_min, x_max, y_max = bounds.bounds
+
+    # Uniform scale into the Material content box, centered on both axes.
+    box_min = BOX_MIN_FRAC * upm
+    box_max = BOX_MAX_FRAC * upm
+    box = box_max - box_min
+    scale = box / max(x_max - x_min, y_max - y_min)
+    tx = box_min + (box - (x_max - x_min) * scale) / 2 - x_min * scale
+    ty = box_min + (box - (y_max - y_min) * scale) / 2 - y_min * scale
+
+    tt_pen = TTGlyphPen(None)
+    quad_pen = Cu2QuPen(tt_pen, max_err=1.0)
+    draw_svg(paths, TransformPen(quad_pen, (scale, 0, 0, scale, tx, ty)))
+    return tt_pen.glyph()
+
+
+def main(font_path):
+    font = TTFont(font_path)
+    upm = font["head"].unitsPerEm
+    order = font.getGlyphOrder()
+
+    for codepoint, (name, svg_file) in sorted(CUSTOM.items()):
+        glyph = build_glyph(svg_path_data(svg_file), upm)
+
+        if name not in order:
+            order.append(name)
+            font.setGlyphOrder(order)
+        font["glyf"][name] = glyph
+        glyph.recalcBounds(font["glyf"])
+        font["hmtx"][name] = (upm, glyph.xMin)
+        for table in font["cmap"].tables:
+            if table.isUnicode():
+                table.cmap[codepoint] = name
+        print(f"Added {name} at U+{codepoint:04X}")
+
+    font["maxp"].numGlyphs = len(order)
+    font.save(font_path)
+    print(f"Wrote {font_path}")
+
+
+if __name__ == "__main__":
+    if len(sys.argv) != 2:
+        sys.exit(__doc__)
+    main(sys.argv[1])
diff --git a/tools/material-symbols-subset/custom/opentimestamps.svg b/tools/material-symbols-subset/custom/opentimestamps.svg
new file mode 100644
index 0000000000..054387593f
--- /dev/null
+++ b/tools/material-symbols-subset/custom/opentimestamps.svg
@@ -0,0 +1,130 @@
+<?xml version="1.0" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 20010904//EN"
+ "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">
+<svg version="1.0" xmlns="http://www.w3.org/2000/svg"
+ width="2000.000000pt" height="2056.000000pt" viewBox="0 0 2000.000000 2056.000000"
+ preserveAspectRatio="xMidYMid meet">
+<metadata>
+Created by potrace 1.16, written by Peter Selinger 2001-2019
+</metadata>
+<g transform="translate(0.000000,2056.000000) scale(0.100000,-0.100000)"
+fill="#000000" stroke="none">
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diff --git a/tools/material-symbols-subset/subset.sh b/tools/material-symbols-subset/subset.sh
index 0689a78aec..640964d342 100755
--- a/tools/material-symbols-subset/subset.sh
+++ b/tools/material-symbols-subset/subset.sh
@@ -59,4 +59,8 @@ pyftsubset "$SOURCE_TTF" \
     --glyph-names \
     --symbol-cmap
 
+# Bake in the custom (non-Material) glyphs from custom/ — third-party logos
+# like OpenTimestamps that the upstream font will never carry.
+python3 "$REPO_ROOT/tools/material-symbols-subset/add_custom_glyphs.py" "$TARGET"
+
 echo "Wrote $TARGET ($(du -h "$TARGET" | cut -f1))"