bug fix and feature polish

Author: Bruno

assets/app.js

@@ -724,12 +724,17 @@
       var params = new URLSearchParams(location.hash.slice(1));
       if (params.has("z") && window.DecompressionStream) {
         try {
-          inflate(b64urlToBytes(params.get("z"))).then(function (json) {
-            var pair = JSON.parse(json);
-            elA.value = String(pair[0]); elB.value = String(pair[1]);
-            render();
-          }, function () { render(); });
-          return; // render happens in the promise
+          // render() must run exactly once no matter what fails inside the
+          // promise (a corrupted link would otherwise leave the page blank —
+          // a throw in a .then success handler skips a rejection callback).
+          inflate(b64urlToBytes(params.get("z")))
+            .then(function (json) {
+              var pair = JSON.parse(json);
+              elA.value = String(pair[0]); elB.value = String(pair[1]);
+            })
+            .catch(function () {})
+            .then(function () { render(); });
+          return; // render happens in the promise chain
         } catch (e) {}
       }
       try {

assets/style.css

@@ -366,6 +366,11 @@ footer { border-top: 1px solid var(--border-subtle); padding: var(--space-8) 0;
     --accent: #4635b8; --accent-soft: #eceafa; --on-accent: #ffffff;
     --add-bg: #e6f4ea; --add-line: #1e7e34; --add-strong: #c7e8d0;
     --del-bg: #fdecea; --del-line: #c0392b; --del-strong: #f5c6c0;
+    /* Syntax tokens too — without these, printing from dark mode puts the
+       dark theme's pale token colors on white paper (near-invisible). */
+    --tok-com: #6b6b74; --tok-str: #8a5a00; --tok-num: #1a5fa8;
+    --tok-kw: #6d28d9; --tok-bool: #9a4b00; --tok-key: #0f6674;
+    --tok-tag: #3b4fc4; --tok-attr: #2a6d5c; --tok-punct: #55555e;
   }
   header, .main-nav, .skip-link, .theme-toggle,
   .diff-inputs, .tool-actions, .fr, .view-toggle, .lang-opt, .opt, .change-nav,