diff --git a/app/src/main/res/drawable/galaxy.png b/app/src/main/res/drawable/galaxy.png
new file mode 100644
index 0000000..088b6eb
Binary files /dev/null and b/app/src/main/res/drawable/galaxy.png differ
diff --git a/app/src/main/res/drawable/wormhole.png b/app/src/main/res/drawable/wormhole.png
new file mode 100644
index 0000000..e885375
Binary files /dev/null and b/app/src/main/res/drawable/wormhole.png differ
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 26f9ab1..603864b 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -6,6 +6,7 @@
     android:layout_height="match_parent"
     android:orientation="vertical"
     android:theme="@style/Theme.AppCompat"
+    android:background="@drawable/galaxy"
     tools:context=".MainActivity">
 
     <TextView
@@ -13,7 +14,7 @@
         android:layout_height="wrap_content"
         android:text="Nombre de usuario"
         android:textAlignment="center"
-        android:textColor="?attr/colorOnSecondary"
+        android:textColor="@color/white"
         android:textSize="25sp" />
 
     <EditText
@@ -24,8 +25,8 @@
         android:focusable="true"
         android:hint="Nombre de usuario"
         android:inputType="textNoSuggestions"
-        android:textColorHint="?attr/colorOnSecondary"
-        android:textColor="?attr/colorOnSecondary"
+        android:textColorHint="@color/white"
+        android:textColor="@color/white"
         tools:ignore="MissingConstraints" />
 
     <TextView
@@ -33,7 +34,7 @@
         android:layout_height="wrap_content"
         android:text="Contraseña"
         android:textAlignment="center"
-        android:textColor="?attr/colorOnSecondary"
+        android:textColor="@color/white"
         android:textSize="25sp" />
 
     <EditText
@@ -44,8 +45,8 @@
         android:focusable="true"
         android:hint="Contraseña"
         android:inputType="textPassword"
-        android:textColorHint="?attr/colorOnSecondary"
-        android:textColor="?attr/colorOnSecondary"
+        android:textColorHint="@color/white"
+        android:textColor="@color/white"
         tools:ignore="MissingConstraints" />
 
     <LinearLayout
@@ -62,9 +63,9 @@
             android:layout_width="0dp"
             android:layout_height="match_parent"
             android:layout_weight="1"
-            android:backgroundTint="?attr/colorOnSecondary"
+            android:backgroundTint="@color/black"
             android:text="Iniciar Sesión"
-            android:textColor="?attr/colorOnPrimary"
+            android:textColor="@color/white"
             tools:ignore="MissingConstraints" />
 
         <Button
@@ -72,9 +73,9 @@
             android:layout_width="0dp"
             android:layout_height="match_parent"
             android:layout_weight="1"
-            android:backgroundTint="?attr/colorOnSecondary"
+            android:backgroundTint="@color/black"
             android:text="Registrarse"
-            android:textColor="?attr/colorOnPrimary"
+            android:textColor="@color/white"
             tools:ignore="MissingConstraints" />
 
     </LinearLayout>
diff --git a/app/src/main/res/layout/activity_sign_up.xml b/app/src/main/res/layout/activity_sign_up.xml
index bfbd958..60d867d 100644
--- a/app/src/main/res/layout/activity_sign_up.xml
+++ b/app/src/main/res/layout/activity_sign_up.xml
@@ -6,6 +6,7 @@
     android:layout_height="match_parent"
     android:orientation="vertical"
     android:theme="@style/Theme.AppCompat"
+    android:background="@drawable/wormhole"
     tools:context=".SignUp">
 
     <TextView
@@ -13,7 +14,7 @@
         android:layout_height="wrap_content"
         android:text="Nombre de usuario"
         android:textAlignment="center"
-        android:textColor="?attr/colorOnSecondary"
+        android:textColor="@color/white"
         android:textSize="25sp" />
 
     <EditText
@@ -24,8 +25,8 @@
         android:focusable="true"
         android:hint="Nombre de usuario"
         android:inputType="textNoSuggestions"
-        android:textColorHint="?attr/colorOnSecondary"
-        android:textColor="?attr/colorOnSecondary"
+        android:textColorHint="@color/white"
+        android:textColor="@color/white"
         tools:ignore="MissingConstraints" />
 
     <TextView
@@ -33,7 +34,7 @@
         android:layout_height="wrap_content"
         android:text="Direccion de email"
         android:textAlignment="center"
-        android:textColor="?attr/colorOnSecondary"
+        android:textColor="@color/white"
         android:textSize="25sp" />
 
     <EditText
@@ -44,8 +45,8 @@
         android:focusable="true"
         android:hint="Correo Electronico"
         android:inputType="textEmailAddress"
-        android:textColorHint="?attr/colorOnSecondary"
-        android:textColor="?attr/colorOnSecondary"
+        android:textColorHint="@color/white"
+        android:textColor="@color/white"
         tools:ignore="MissingConstraints" />
 
     <TextView
@@ -53,7 +54,7 @@
         android:layout_height="wrap_content"
         android:text="Contraseña"
         android:textAlignment="center"
-        android:textColor="?attr/colorOnSecondary"
+        android:textColor="@color/white"
         android:textSize="25sp" />
 
     <EditText
@@ -64,8 +65,8 @@
         android:focusable="true"
         android:hint="Contraseña"
         android:inputType="textPassword"
-        android:textColorHint="?attr/colorOnSecondary"
-        android:textColor="?attr/colorOnSecondary"
+        android:textColorHint="@color/white"
+        android:textColor="@color/white"
         tools:ignore="MissingConstraints" />
 
     <EditText
@@ -76,8 +77,8 @@
         android:focusable="true"
         android:hint="Confirmar contraseña"
         android:inputType="textPassword"
-        android:textColorHint="?attr/colorOnSecondary"
-        android:textColor="?attr/colorOnSecondary"
+        android:textColorHint="@color/white"
+        android:textColor="@color/white"
         tools:ignore="MissingConstraints" />
 
     <TextView
@@ -85,7 +86,7 @@
         android:layout_height="wrap_content"
         android:text="Nacionalidad"
         android:textAlignment="center"
-        android:textColor="?attr/colorOnSecondary"
+        android:textColor="@color/white"
         android:textSize="25sp" />
 
     <EditText
@@ -95,8 +96,8 @@
         android:focusable="true"
         android:hint="Nacionalidad"
         android:inputType="textNoSuggestions"
-        android:textColorHint="?attr/colorOnSecondary"
-        android:textColor="?attr/colorOnSecondary"
+        android:textColorHint="@color/white"
+        android:textColor="@color/white"
         tools:ignore="MissingConstraints" />
 
     <TextView
@@ -104,7 +105,7 @@
         android:layout_height="wrap_content"
         android:text="Fecha de nacimiento"
         android:textAlignment="center"
-        android:textColor="?attr/colorOnSecondary"
+        android:textColor="@color/white"
         android:textSize="25sp" />
 
     <LinearLayout
@@ -124,8 +125,8 @@
             android:focusable="true"
             android:hint="DD"
             android:inputType="date"
-            android:textColorHint="?attr/colorOnSecondary"
-            android:textColor="?attr/colorOnSecondary"
+            android:textColorHint="@color/white"
+            android:textColor="@color/white"
             tools:ignore="MissingConstraints" />
 
         <EditText
@@ -136,8 +137,8 @@
             android:focusable="true"
             android:hint="MM"
             android:inputType="date"
-            android:textColorHint="?attr/colorOnSecondary"
-            android:textColor="?attr/colorOnSecondary"
+            android:textColorHint="@color/white"
+            android:textColor="@color/white"
             tools:ignore="MissingConstraints" />
 
         <EditText
@@ -148,8 +149,8 @@
             android:focusable="true"
             android:hint="AAAA"
             android:inputType="date"
-            android:textColorHint="?attr/colorOnSecondary"
-            android:textColor="?attr/colorOnSecondary"
+            android:textColorHint="@color/white"
+            android:textColor="@color/white"
             tools:ignore="MissingConstraints" />
 
     </LinearLayout>
@@ -168,9 +169,9 @@
             android:layout_width="0dp"
             android:layout_height="match_parent"
             android:layout_weight="1"
-            android:backgroundTint="?attr/colorOnSecondary"
+            android:backgroundTint="@color/black"
             android:text="Registrarse"
-            android:textColor="?attr/colorOnPrimary"
+            android:textColor="@color/white"
             tools:ignore="MissingConstraints" />
 
     </LinearLayout>