The overlay is a semi-transparent color layer applied over the background image or video of the slide, useful for improving the readability of the foreground text.
Procedure
1. Access the Slider editing mode.
2. Select the (Slide) tab containing the image or video to which you want to apply the overlay.
3. Scroll down until you find the Background panel.
4. Inside the Background panel, locate and click on the Overlay panel.
5. In the field labeled Color, click on the eyedropper icon (or on the text field) to open the color picker.
6. Select the desired color using the graphic selector, or directly enter the hexadecimal color code (e.g., #000000) in the text field.
7. If you want to make the color transparent, use the Opacity field (enter a numeric value from 0 to 100, where 100 is fully opaque).
8. After completing your changes, finish by saving the Slider.
