Remove redundant colors and use icons

app/src/main/java/org/traccar/client/ShortcutActivity.java

@@ -65,13 +65,13 @@ public class ShortcutActivity extends AppCompatActivity {
                 public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                     switch (position) {
                         case 0:
-                            setShortcutResult(items[position], R.mipmap.ic_launcher, ACTION_START);
+                            setShortcutResult(items[position], R.mipmap.ic_start, ACTION_START);
                             break;
                         case 1:
-                            setShortcutResult(items[position], R.mipmap.ic_launcher, ACTION_STOP);
+                            setShortcutResult(items[position], R.mipmap.ic_stop, ACTION_STOP);
                             break;
                         case 2:
-                            setShortcutResult(items[position], R.mipmap.ic_launcher, ACTION_SOS);
+                            setShortcutResult(items[position], R.mipmap.ic_sos, ACTION_SOS);
                             break;
                     }
                     finish();

app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/ic_launcher_background"/>
+    <background android:drawable="@color/primary"/>
     <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
 </adaptive-icon>

app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/ic_launcher_background"/>
+    <background android:drawable="@color/primary"/>
     <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
 </adaptive-icon>

app/src/main/res/mipmap-anydpi-v26/ic_sos.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/ic_sos_background"/>
+    <background android:drawable="@color/white"/>
     <foreground android:drawable="@mipmap/ic_sos_foreground"/>
 </adaptive-icon>

app/src/main/res/mipmap-anydpi-v26/ic_sos_round.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/ic_sos_background"/>
+    <background android:drawable="@color/white"/>
     <foreground android:drawable="@mipmap/ic_sos_foreground"/>
 </adaptive-icon>

app/src/main/res/mipmap-anydpi-v26/ic_start.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/ic_start_background"/>
+    <background android:drawable="@color/white"/>
     <foreground android:drawable="@mipmap/ic_start_foreground"/>
 </adaptive-icon>

app/src/main/res/mipmap-anydpi-v26/ic_start_round.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/ic_start_background"/>
+    <background android:drawable="@color/white"/>
     <foreground android:drawable="@mipmap/ic_start_foreground"/>
 </adaptive-icon>

app/src/main/res/mipmap-anydpi-v26/ic_stop.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/ic_stop_background"/>
+    <background android:drawable="@color/white"/>
     <foreground android:drawable="@mipmap/ic_stop_foreground"/>
 </adaptive-icon>

app/src/main/res/mipmap-anydpi-v26/ic_stop_round.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/ic_stop_background"/>
+    <background android:drawable="@color/white"/>
     <foreground android:drawable="@mipmap/ic_stop_foreground"/>
 </adaptive-icon>

app/src/main/res/values/colors.xml

@@ -4,7 +4,6 @@
     <color name="primary">#43A047</color>
     <color name="primary_dark">#2E7D32</color>
     <color name="accent">#388E3C</color>
-
-    <color name="ic_launcher_background">#43A047</color>
+    <color name="white">#FFFFFF</color>
 
 </resources>

app/src/main/res/values/ic_sos_background.xml

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-  <color name="ic_sos_background">#FFFFFF</color>
-</resources>

app/src/main/res/values/ic_start_background.xml

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-  <color name="ic_start_background">#FFFFFF</color>
-</resources>

app/src/main/res/values/ic_stop_background.xml

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-  <color name="ic_stop_background">#FFFFFF</color>
-</resources>

app/src/main/res/xml/shortcuts.xml

@@ -7,7 +7,7 @@
     <shortcut
         android:shortcutId="start"
         android:enabled="true"
-        android:icon="@mipmap/ic_launcher"
+        android:icon="@mipmap/ic_start"
         android:shortcutShortLabel="@string/shortcut_start">
         <intent
             android:action="android.intent.action.VIEW"
@@ -22,7 +22,7 @@
     <shortcut
         android:shortcutId="stop"
         android:enabled="true"
-        android:icon="@mipmap/ic_launcher"
+        android:icon="@mipmap/ic_stop"
         android:shortcutShortLabel="@string/shortcut_stop">
         <intent
             android:action="android.intent.action.VIEW"
@@ -37,7 +37,7 @@
     <shortcut
         android:shortcutId="sos"
         android:enabled="true"
-        android:icon="@mipmap/ic_launcher"
+        android:icon="@mipmap/ic_sos"
         android:shortcutShortLabel="@string/shortcut_sos">
         <intent
             android:action="android.intent.action.VIEW"