diff --git a/lib/src/stream_chat_theme.dart b/lib/src/stream_chat_theme.dart
index 70845ba9..f9c81be7 100644
--- a/lib/src/stream_chat_theme.dart
+++ b/lib/src/stream_chat_theme.dart
@@ -491,9 +491,9 @@ class ColorTheme {
       stops: [0, 1],
     ),
     this.borderTop = const Effect(
-        sigmaX: 0, sigmaY: -1, color: Color(0xff141924), blur: 0.0),
+        sigmaX: 0, sigmaY: -1, color: Color(0xff000000), blur: 0.0),
     this.borderBottom =
-        const Effect(sigmaX: 0, sigmaY: 1, color: Color(0xff141924), blur: 0.0),
+        const Effect(sigmaX: 0, sigmaY: 1, color: Color(0xff000000), blur: 0.0),
     this.shadowIconButton = const Effect(
         sigmaX: 0, sigmaY: 2, color: Color(0xff000000), alpha: 0.5, blur: 4.0),
     this.modalShadow = const Effect(