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You're using the correct commands to change the theme for Amazon Q Developer CLI, but there's a misunderstanding about what these theme settings affect.
The q theme command specifically changes the visual theme for the autocomplete dropdown menu that appears when you're using Amazon Q CLI - it doesn't change the overall terminal colors or the inline suggestions. The built-in themes available are:
darklightsystem(follows your system settings)
You can use these commands to manage the theme:
q theme light- Sets the autocomplete dropdown to light themeq theme dark- Sets the autocomplete dropdown to dark themeq theme system- Sets the autocomplete dropdown to follow system settingsq theme- Shows your current themeq theme --list- Lists all available themes
For the inline suggestions (the gray "ghost text" that appears as you type), these are controlled separately using the q inline command, but there isn't a documented way to change their color scheme specifically.
The terminal's base colors are controlled by your terminal emulator settings, not by Amazon Q. Amazon Q's theming only affects its own UI elements like the autocomplete dropdown, not the overall terminal appearance or text colors.
If the yellow text on light gray is difficult to read, you might need to adjust your terminal's color settings rather than Amazon Q's theme settings.
Sources
Amazon Q CLI command reference - Amazon Q Developer
Command line assistance features - Amazon Q Developer
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Yes, these settings are for autocomplete dropdown. But I don't want to change my terminal colors, I'd prefer to change Q Developer CLI settings to match my environment.