Merge pull request zen-browser#1748 from zen-browser/create-theme-1747

Author: mr-cheffy

themes/c01d3e22-1cee-45c1-a25e-53c0f180eea8/chrome.css

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+
+/* Ghost Tabs - Zen Browser Mod */
+/* Makes unloaded/inactive tabs appear ghost-like */
+
+:root {
+    --ghost-filter: grayscale(1);
+    --ghost-opacity: 0.5;
+}
+
+/* Pending tabs appear ghost-like */
+.tabbrowser-tab[pending="true"] {
+    filter: var(--ghost-filter);
+    opacity: var(--ghost-opacity);
+}
+
+/* Ghost folders only when every child tab is pending and not being renamed */
+zen-folder:not(:has(.tab-label-container-editing)):not(
+        :has(.tabbrowser-tab:not([pending="true"]))
+    )
+    :is(.tab-group-label, .tab-label-container, .tab-group-folder-icon) {
+    filter: var(--ghost-filter);
+    opacity: var(--ghost-opacity);
+}

themes/c01d3e22-1cee-45c1-a25e-53c0f180eea8/image.png

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+
+Makes unloaded tabs & folders appear ghost-like by making them grayscale and transparent.

themes/c01d3e22-1cee-45c1-a25e-53c0f180eea8/readme.md

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+{
+    "id": "c01d3e22-1cee-45c1-a25e-53c0f180eea8",
+    "name": "Ghost Tabs",
+    "description": "Makes unloaded tabs & folders appear ghost-like by making them grayscale and transparent.",
+    "homepage": "https://github.com/Seismix/zen-ghost-tabs",
+    "style": "https://raw.githubusercontent.com/zen-browser/theme-store/main/themes/c01d3e22-1cee-45c1-a25e-53c0f180eea8/chrome.css",
+    "readme": "https://raw.githubusercontent.com/zen-browser/theme-store/main/themes/c01d3e22-1cee-45c1-a25e-53c0f180eea8/readme.md",
+    "image": "https://raw.githubusercontent.com/zen-browser/theme-store/main/themes/c01d3e22-1cee-45c1-a25e-53c0f180eea8/image.png",
+    "author": "Seismix",
+    "version": "1.0.0",
+    "tags": [],
+    "createdAt": "2025-10-02",
+    "updatedAt": "2025-10-02"
+}