diff --git a/apps/readest-app/src/utils/style.ts b/apps/readest-app/src/utils/style.ts
index 6938498a..395d2014 100644
--- a/apps/readest-app/src/utils/style.ts
+++ b/apps/readest-app/src/utils/style.ts
@@ -216,7 +216,7 @@ const getLayoutStyles = (
     background: var(--background-set, none);
   }
   body.pbg, body *:not(a):not(#b1):not(#b1 *):not(#b2):not(#b2 *):not(img):not(.bg):not(.bg *):not(.vol):not(.vol *):not(.background):not(.background *) {
-    ${bg === '#ffffff' ? '' : `background-color: ${bg} !important;`}
+    ${isDarkMode ? `background-color: ${bg} !important;` : ''}
   }
   body {
     overflow: unset;
diff --git a/packages/foliate-js b/packages/foliate-js
index 89285c2c..58ed2f52 160000
--- a/packages/foliate-js
+++ b/packages/foliate-js
@@ -1 +1 @@
-Subproject commit 89285c2cd49716204e9481811301d6daf1362e44
+Subproject commit 58ed2f52eb7b93ab624c50355453c287b87ff8e6