diff --git a/lib/mop.dart b/lib/mop.dart
index 49c7904..8baf561 100644
--- a/lib/mop.dart
+++ b/lib/mop.dart
@@ -184,12 +184,12 @@ class CapsuleConfig {
       "capsuleRightMargin": capsuleRightMargin,
       "capsuleCornerRadius": capsuleCornerRadius,
       "capsuleBorderWidth": capsuleBorderWidth,
-      "capsuleBgLightColor": capsuleBgLightColor,
-      "capsuleBgDarkColor": capsuleBgDarkColor,
-      "capsuleBorderLightColor": capsuleBorderLightColor,
-      "capsuleBorderDarkColor": capsuleBorderDarkColor,
-      "capsuleDividerLightColor": capsuleDividerLightColor,
-      "capsuleDividerDarkColor": capsuleDividerDarkColor,
+      "capsuleBgLightColor": capsuleBgLightColor.toSigned(32),
+      "capsuleBgDarkColor": capsuleBgDarkColor.toSigned(32),
+      "capsuleBorderLightColor": capsuleBorderLightColor.toSigned(32),
+      "capsuleBorderDarkColor": capsuleBorderDarkColor.toSigned(32),
+      "capsuleDividerLightColor": capsuleDividerLightColor.toSigned(32),
+      "capsuleDividerDarkColor": capsuleDividerDarkColor.toSigned(32),
       "moreLightImage": moreLightImage,
       "moreDarkImage": moreDarkImage,
       "moreBtnWidth": moreBtnWidth,