Minamp 1.6: adjustable UI size, larger text and controls

- New setting "Text and button size" (Normal / Large / Extra large): scales
  text, icons and buttons on top of the phone's density (App.UI_SCALES)
- Larger default text, rows, tiles, touch targets and player icons; all sizes
  now live in res/values/dimens.xml
- Seek bar knob drawn in code, since Android 2.x caches XML shapes at the
  size they were first loaded
- Full-width buttons wrap to two lines instead of cutting words off
- Shorter labels so they fit 240x320 screens in both languages
- tools/check_fit.py checks that UI texts fit their slots at every size and
  language using Droid Sans metrics; build.sh runs it and setup_toolchain.sh
  fetches the font

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

res/values/styles.xml

@@ -18,7 +18,7 @@
     </style>
 
     <style name="Title">
-        <item name="android:textSize">16sp</item>
+        <item name="android:textSize">@dimen/text_title</item>
         <item name="android:textStyle">bold</item>
         <item name="android:textColor">@color/text</item>
         <item name="android:singleLine">true</item>
@@ -26,7 +26,7 @@
     </style>
 
     <style name="Sub">
-        <item name="android:textSize">12sp</item>
+        <item name="android:textSize">@dimen/text_sub</item>
         <item name="android:textColor">@color/text2</item>
         <item name="android:singleLine">true</item>
         <item name="android:ellipsize">end</item>
@@ -37,29 +37,35 @@
         <item name="android:layout_height">match_parent</item>
         <item name="android:layout_weight">1</item>
         <item name="android:gravity">center</item>
-        <item name="android:textSize">11sp</item>
+        <item name="android:textSize">@dimen/text_tab</item>
         <item name="android:textStyle">bold</item>
         <item name="android:textColor">@color/text2</item>
         <item name="android:background">@drawable/bg_pressable</item>
         <item name="android:singleLine">true</item>
+        <item name="android:ellipsize">end</item>
     </style>
 
     <style name="IconButton">
-        <item name="android:layout_width">44dp</item>
-        <item name="android:layout_height">44dp</item>
+        <item name="android:layout_width">@dimen/touch</item>
+        <item name="android:layout_height">@dimen/touch</item>
         <item name="android:background">@drawable/bg_pressable_round</item>
         <item name="android:scaleType">center</item>
     </style>
 
+    <!-- full-width buttons may wrap to two lines rather than cut words off -->
     <style name="ButtonAccent">
-        <item name="android:layout_height">40dp</item>
+        <item name="android:layout_height">wrap_content</item>
+        <item name="android:minHeight">@dimen/button</item>
         <item name="android:background">@drawable/bg_button_accent</item>
         <item name="android:textColor">@color/on_accent</item>
-        <item name="android:textSize">14sp</item>
+        <item name="android:textSize">@dimen/text_button</item>
         <item name="android:textStyle">bold</item>
         <item name="android:gravity">center</item>
-        <item name="android:paddingLeft">16dp</item>
-        <item name="android:paddingRight">16dp</item>
+        <item name="android:maxLines">2</item>
+        <item name="android:paddingLeft">@dimen/button_pad</item>
+        <item name="android:paddingRight">@dimen/button_pad</item>
+        <item name="android:paddingTop">6dp</item>
+        <item name="android:paddingBottom">6dp</item>
     </style>
 
     <style name="ButtonOutline" parent="ButtonAccent">
@@ -70,10 +76,11 @@
     <style name="Edit">
         <item name="android:layout_width">match_parent</item>
         <item name="android:layout_height">wrap_content</item>
+        <item name="android:minHeight">@dimen/button</item>
         <item name="android:background">@drawable/bg_edit</item>
         <item name="android:textColor">@color/text</item>
         <item name="android:textColorHint">@color/text2</item>
-        <item name="android:textSize">14sp</item>
+        <item name="android:textSize">@dimen/text_body</item>
         <item name="android:padding">10dp</item>
         <item name="android:singleLine">true</item>
     </style>