diff --git a/index.html b/index.html
index 6348ced..f32b27b 100644
--- a/index.html
+++ b/index.html
@@ -1157,10 +1157,11 @@ var weatherThemes = {
                 'icon', 'stone', 'bone', 'chalk',
                 'orange', 'yellow', 'red', 'brown', 'pink', 'green', 'blue', 'blue-light', 'purple'
             ];
+            var dbgRoot = getComputedStyle(document.documentElement);
             var colorHtml = '<div class="theme-table-header">Palette</div>';
             for (var k = 0; k < colorKeys.length; k++) {
                 var ck = colorKeys[k];
-                var cv = ASH[ck] || root.getPropertyValue('--' + ck).trim();
+                var cv = ASH[ck] || dbgRoot.getPropertyValue('--' + ck).trim();
                 colorHtml += '<div class="theme-table-row">' +
                     '<span class="theme-table-name">' + ck + '</span>' +
                     '<div class="theme-table-mini-swatch" style="background:' + cv + '"></div>' +