Implemented functionality to pick a font, currently limited to 3 default fonts (sans-serif, serif, monospace)

app/src/main/res/layout/item_dropdown_menu.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<TextView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/item_text"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:textSize="16sp"
+    android:paddingHorizontal="16dp"
+    android:paddingVertical="16dp"/>

app/src/main/res/menu/list_fonts.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item
+        android:id="@+id/sansserif"
+        android:title="@string/sansserif"
+        android:enabled="true"/>
+    <item
+        android:id="@+id/serif"
+        android:title="@string/serif"
+        android:enabled="true"/>
+    <item
+        android:id="@+id/monospace"
+        android:title="@string/monospace"
+        android:enabled="true"/>
+</menu>

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

@@ -79,6 +79,12 @@
     <string name="serif">Serif</string>
     <string name="monospace">Monospace</string>
 
+    <string-array name="text_fonts">
+        <item>Sans-Serif</item>
+        <item>Serif</item>
+        <item>Monospace</item>
+    </string-array>
+
     <string name="background">Background</string>
     <string name="outline">Outline</string>
     <string name="shadow">Shadow</string>