Hello,
The blue background images in the Medical Demo are part of the WoodMart Slides, with background images set directly. To adjust or replace them, follow these steps:
1. Navigate to Slides > Edit Slide from your WordPress admin panel.
2. Locate the Featured Image section, which serves as the background image for the slide.
3. Replace the featured image with your desired image to customize the design.
See Screenshot for better understanding: https://ibb.co/q3MGFzqg
If you want a completely plain background blue without any images, simply remove the featured image and in the bottom of the slide settings set the background color.https://ibb.co/4gTV4PTs
Best regards,