Good for coding (ActionScript), bad for visual art.
Changing the interface color in Flash CS6 is a simple process, following the same UI guidelines as other Creative Suite 6 products like Photoshop. Launch the application. adobe flash cs6 dark mode
If you prefer not to alter the internal files of Flash CS6, you can use your operating system to force the application window to render in darker tones. Windows High Contrast / Color Filters Press Windows Key + I to open Settings. Good for coding (ActionScript), bad for visual art