darken the keyboard a bit, dont use the background color

app/src/main/kotlin/com/simplemobiletools/keyboard/activities/MainActivity.kt

@@ -43,7 +43,7 @@ class MainActivity : SimpleActivity() {
 
         updateTextColors(main_holder)
         updateChangeKeyboardColor()
-        main_holder.setBackgroundColor(config.backgroundColor.lightenColor(3))
+        main_holder.setBackgroundColor(config.backgroundColor)
     }
 
     override fun onCreateOptionsMenu(menu: Menu): Boolean {

app/src/main/kotlin/com/simplemobiletools/keyboard/views/MyKeyboardView.kt

@@ -352,7 +352,7 @@ class MyKeyboardView @JvmOverloads constructor(context: Context, attrs: Attribut
                 newBgColor = newBgColor.darkenColor(4)
             }
 
-            background.applyColorFilter(newBgColor)
+            background.applyColorFilter(newBgColor.darkenColor(2))
         }
     }