diff --git a/src/kiri/core/consts.js b/src/kiri/core/consts.js
index 378fd482..fa4e45af 100644
--- a/src/kiri/core/consts.js
+++ b/src/kiri/core/consts.js
@@ -10,10 +10,11 @@ const COLOR = {
     slicing: 0xffaaaa,
     slicing_opacity: 0.5,
     sliced_opacity: 0.0,
-    cam_preview: 0x888888,
+    cam_sliced_opacity: 0.2,
+    cam_preview: 0xdddddd,
+    cam_preview_opacity: 0.2,
+    cam_preview_dark: 0x888888,
     cam_preview_opacity_dark: 0.2,
-    cam_preview_opacity: 0.1,
-    cam_sliced_opacity: 0.2
 };
 
 const LISTS = {
diff --git a/src/kiri/core/function.js b/src/kiri/core/function.js
index c1b3482f..47fb4d06 100644
--- a/src/kiri/core/function.js
+++ b/src/kiri/core/function.js
@@ -326,7 +326,7 @@ function preparePreview(callback, scale = 1, offset = 0) {
 
     if (isCam) {
         api.widgets.setOpacity(isDark ? COLOR.cam_preview_opacity_dark : COLOR.cam_preview_opacity);
-        api.widgets.setColor(COLOR.cam_preview);
+        api.widgets.setColor(isDark ? COLOR.cam_preview_dark : COLOR.cam_preview);
     } else if (offset === 0) {
         api.widgets.setOpacity(COLOR.preview_opacity);
     }
diff --git a/src/kiri/core/render.js b/src/kiri/core/render.js
index cd5ac95e..7dfb7e97 100644
--- a/src/kiri/core/render.js
+++ b/src/kiri/core/render.js
@@ -421,6 +421,9 @@ function color4light(rgb, inc, seg) {
             rgb.b = 1;
             break;
     }
+    rgb.r *= 0.8;
+    rgb.g *= 0.8;
+    rgb.b = 0.4;
 }
 
 function color4light2(rgb, inc, seg) {