Android ui upgrade (#1)

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Co-authored-by: intelligence <intelligence@debian.local>
Reviewed-on: #1

android/app/src/main/res/values-night/colors.xml

@@ -6,6 +6,7 @@
     <color name="mist">#11191D</color>
     <color name="paper">#192329</color>
     <color name="line">#34444B</color>
+    <color name="on_signal">#142027</color>
     <color name="ripple_on_signal">#3DFFFFFF</color>
     <color name="ripple_signal">#3342C9C1</color>
 </resources>