You have installed a demo from our theme and you want to change the predominants colors. Please go first to WP-Admin > LUSH > Look and feel. In this section you will find different color options. Go to WP-Admin > LUSH > Typography. Here, you can edit colors and typographies for every heading (Body, h1, h2, h3, etc.). Go to WP-Admin > LUSD > Menu. In this section you can edit the color for the menu. Some of the Visual Composer elements, like "Custom Heading", "Buttons", and Background of the rows has they own color setting so make sure to change them as well. Learn more about how to change background images and color. *Just be aware you can't modify color from images (jpeg, png, gif).