fix: increase tree glyph stroke weight

site/tests/browser/landing.spec.ts

@@ -219,8 +219,8 @@ test('trunk thickness and origin stay proportional to the slash throughout scali
     await page.clock.runFor(time - previousTime);
     const ink = await trunkGeometry(page);
     expect(ink.opacity).toBeGreaterThan(0);
-    // At rest: the Lyth Mono filled stem is 1.064px, slash ink is 21px.
-    expect(ink.stemWidth).toBeCloseTo(1.064, 5);
+    // At rest: tree ink is weighted 25% above the font's native 1.064px stem.
+    expect(ink.stemWidth).toBeCloseTo(1.33, 5);
     expect(ink.width / ink.slashHeight).toBeCloseTo(ink.stemWidth / 21, 5);
     // The foot is at x=12 within ink bounds x=7…41, not their centre.
     expect(ink.anchorX).toBeCloseTo(5 / 34, 5);
@@ -601,7 +601,7 @@ test.describe('JavaScript-free glyph tree', () => {
     await expect(page.locator('.branch-prefix svg')).toHaveCount(8);
     expect(await page.locator('.branch-prefix').evaluateAll((prefixes) => prefixes.every((prefix) => !prefix.textContent!.trim()))).toBe(true);
     const trunk = await trunkGeometry(page);
-    expect(trunk.width).toBeCloseTo(1.064, 5);
+    expect(trunk.width).toBeCloseTo(1.33, 5);
     expect(trunk.length).toBeGreaterThan(0);
     expect(Math.abs(trunk.axis)).toBeLessThan(.1);
     expect(trunk.gapRatio).toBeCloseTo(1 / 14, 5);

site/tests/landing-glyphs.test.mjs

@@ -20,7 +20,8 @@ test('pinned font binaries and upstream licenses match their integrity manifest'
 
 test('Lyth Mono paths retain exact advance, row bounds and stroke dimensions', () => {
   close(cellWidth, 8.456);
-  close(stemWidth, 1.064);
+  close(stemWidth, 1.064 * 1.25);
+  close(branchThickness, (68 / 1170) * 24 * 1.25);
   close(branchY, rowHeight / 2);
   const vertical = box(glyphPath('│'));
   close(vertical.y1, 0);
@@ -31,6 +32,17 @@ test('Lyth Mono paths retain exact advance, row bounds and stroke dimensions', (
   close(horizontal.x1, 0);
   close(horizontal.x2, cellWidth);
   close(horizontal.y2 - horizontal.y1, branchThickness);
+  close((horizontal.y1 + horizontal.y2) / 2, branchY);
+  const tee = box(glyphPath('├'));
+  close(tee.x1, cellWidth / 2 - stemWidth / 2);
+  close(tee.x2, cellWidth);
+  close(tee.y1, 0);
+  close(tee.y2, rowHeight);
+  const elbow = box(glyphPath('└'));
+  close(elbow.x1, tee.x1);
+  close(elbow.x2, cellWidth);
+  close(elbow.y1, 0);
+  close(elbow.y2, branchY + branchThickness / 2);
   const trunk = box(trunkPath);
   close(trunk.x1 + trunk.x2, 0);
   close(trunk.x2 - trunk.x1, stemWidth);