From b1f5530e486d537328b27aa0b1a9e86fa9b9116d Mon Sep 17 00:00:00 2001
From: zzstoatzz <thrast36@gmail.com>
Date: Sat, 29 Aug 2026 05:47:45 -0500
Subject: [PATCH] page: right-anchored era label shadows ticks to its left

---
 src/ui.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/ui.js b/src/ui.js
index 1454f29..7bf7a26 100644
--- a/src/ui.js
+++ b/src/ui.js
@@ -196,7 +196,9 @@ function render() {
   for (let bi = 0; bi < n; bi++) if (bi === 0 || eraOf(buckets[bi]) !== eraOf(buckets[bi - 1])) eraAts.push(bi / n);
   const place = (bi, text, cls) => {
     const at = bi / n;
-    if (!cls && (at - lastAt < 0.1 || eraAts.some((e) => Math.abs(at - e) < 0.14))) return;
+    // an era label near the right edge is anchored to its right and reaches ~a quarter of the strip leftward
+    const shadowed = eraAts.some((e) => (e > 0.8 ? at > e - 0.27 && at < e + 0.05 : at > e - 0.05 && at < e + 0.22));
+    if (!cls && (at - lastAt < 0.1 || shadowed)) return;
     ticks.push(`<span class="tick${at > 0.8 ? " end" : ""}${cls ? ` ${cls}` : ""}" style="left:${100 * at}%">${text}</span>`);
     lastAt = at;
   };
-- 
2.51.2