does not have a native "dark mode"
Adobe Flash Professional CS6 or user interface theme toggle . While contemporary Adobe software like Photoshop CS6 introduced dark interface options, Flash CS6 retained a fixed light-gray workspace. Key Details on Interface Customization
free alternatives
Help you find to Flash that have native dark mode.
"Adobe Flash CS6 Dark Mode Link"
Here’s a detailed content breakdown for a page or post about — including what it is, why users want it, how to get it, and step-by-step instructions.