Add Drawable Spotlight Shapes with Adjustable Background Dimming

[RumplesWrinkles]

Presentify currently supports drawing outline shapes (rectangles, circles, arrows, etc.) to highlight content, and it also includes a mouse-based spotlight feature that dims the screen around the cursor.

I’d love the ability to draw spotlight shapes directly on the screen, similar to how rectangles and circles are currently drawn. Instead of just outlining a region, these spotlight shapes would dim the entire screen except for the selected area (for example, a rectangle or circle), effectively creating a persistent, shape-based spotlight.

This would be especially useful during presentations or demos when highlighting specific UI elements or workflows without relying on mouse position.

Ideally, this feature would also include a customizable setting to adjust the background dimming intensity.

This would extend the existing spotlight functionality and make it more flexible for structured walkthroughs and screen recordings.