Version 1.5 improves how incoming HTML emails are displayed in dark mode.

• Emails already designed with a predominantly dark background are now preserved instead of being inverted into light colors.
• Light HTML emails and transparent plain-text messages continue to receive dark-mode adaptation.
• Added background detection for nested tables commonly used in newsletters.
• Images, videos, SVGs, and other media continue to retain their original colors.
• Added regression tests covering dark, light, nested-table, and plain-text messages.

Version 1.4 introduces a new native-first hybrid dark-mode engine.

• Gmail now switches automatically between its built-in Default and Dark themes
• Added real-time system-theme synchronization in every Gmail tab
• Improved plain-text and rich HTML message rendering
• Preserved original colors for images, videos, and embedded content
• Darkened conversation titles, sender details, metadata, and reply controls
• Added complete popup, expanded, and fullscreen compose coverage
• Fixed compose and reply text contrast
• Darkened compose option menus and nested submenus
• Removed the background script and unnecessary tabs permission
• Added accessibility improvements and automated regression tests