优化

app/src/main/res/xml/pref_config_theme.xml

@@ -68,7 +68,7 @@
         app:layout="@layout/view_preference_category">
 
         <io.legado.app.lib.prefs.ColorPreference
-            android:defaultValue="@color/md_light_blue_600"
+            android:defaultValue="@color/md_brown_500"
             android:key="colorPrimary"
             android:summary="@string/day_color_primary"
             android:title="@string/primary"
@@ -76,7 +76,7 @@
             app:iconSpaceReserved="false" />
 
         <io.legado.app.lib.prefs.ColorPreference
-            android:defaultValue="@color/md_pink_800"
+            android:defaultValue="@color/md_red_600"
             android:key="colorAccent"
             android:summary="@string/day_color_accent"
             android:title="@string/accent"
@@ -124,7 +124,7 @@
         app:layout="@layout/view_preference_category">
 
         <io.legado.app.lib.prefs.ColorPreference
-            android:defaultValue="@color/md_grey_900"
+            android:defaultValue="@color/md_blue_grey_600"
             android:key="colorPrimaryNight"
             android:summary="@string/night_primary"
             android:title="@string/primary"
@@ -140,7 +140,7 @@
             app:iconSpaceReserved="false" />
 
         <io.legado.app.lib.prefs.ColorPreference
-            android:defaultValue="@color/md_black_1000"
+            android:defaultValue="@color/md_grey_900"
             android:key="colorBackgroundNight"
             android:summary="@string/night_background_color"
             android:title="@string/background_color"
@@ -148,7 +148,7 @@
             app:iconSpaceReserved="false" />
 
         <io.legado.app.lib.prefs.ColorPreference
-            android:defaultValue="@color/md_grey_800"
+            android:defaultValue="@color/md_grey_850"
             android:key="colorBottomBackgroundNight"
             android:summary="@string/night_navbar_color"
             android:title="@string/navbar_color"