Caption controls sometimes draw in the wrong color

[YuliKl]

Describe the bug

Sometimes the minimize/maximize/close buttons render black on black or white on white, invisible until hovered over.

Steps to reproduce the bug

Steps to reproduce the behavior:

1. Launch the app. Ensure it's set to "Use system setting" theme mode
2. Restart the app
3. On its settings page, select the theme mode opposite to current system theme (so if my system theme is Light, choose the Dark radio button)
4. Restart the app

Expected behavior

Caption controls are visible in their rest state

Actual behavior

Caption controls disappear

Screenshots

Version Info

Gallery version (found on Settings page):
1.2.8.0

Windows 10 version:

• Insider Build (xxxxx)
• May 2019 Update (18362)
• October 2018 Update (17763)
• April 2018 Update (17134)
• Fall Creators Update (16299)
• Creators Update (15063)
• Anniversary Update (14393)

Device form factor:

• Desktop
• Mobile
• Xbox
• Surface Hub
• IoT

Additional context