Create themes.js

Author: lumosframework

themes.js

@@ -0,0 +1,21 @@
+window.colorThemes = [];
+const htmlStyles = getComputedStyle(document.documentElement);
+const targetStylesheet = document.querySelector(".page_code_color style");
+const regex = /--([^:\s]+):\s*var\(--([^)]+)\);/g;
+window.colorThemes.push({});
+
+if (targetStylesheet) {
+  const rules = targetStylesheet.sheet.cssRules || targetStylesheet.sheet.rules;
+  for (const rule of rules) {
+    if (rule.cssText.includes("data-theme=") && !rule.cssText.includes(`data-theme="inherit"`)) {
+      const styleObject = {};
+      let match;
+      while ((match = regex.exec(rule.cssText)) !== null) {
+        const key = "--" + match[1];
+        const value = htmlStyles.getPropertyValue("--" + match[2]);
+        styleObject[key] = value;
+      }
+      window.colorThemes.push(styleObject);
+    }
+  }
+}