System bar overlaps content area

Issue

When launching the game, it enters immersive mode. However, after tapping a text field, the system bar appears and doesn't go away, even after dismissing the keyboard. This partially obscures the main content area.

Steps

• Launch the game
• Tap New world
• Tap name field
  • keyboard appears
  • system bar appears
• Dismiss the keyboard

Expected

• Keyboard disappears
• System bar disappears

Actual

• Keyboard disappears
• System bar persists

Possible Solution

• It seems that the system bar appears to allow for a menu icon. This is a legacy feature.
• Replace the legacy menu button with an on-screen one
• http://android-developers.blogspot.com/2012/01/say-goodbye-to-menu-button.html?m=1

Device

• Nexus 5, Android 4.4.3 (stock)