The block — WordPress

In the editor, add the shader's block (under Design) and place any blocks inside it: a heading, text, buttons. It opens full width, with the shader live behind your content. In its settings:

• Minimum height: for example 560px or 80vh.
• Fade the shader: toward its background colour, so text reads more easily.
• Text colour and padding are in the block's styles. Headings and the theme's buttons take the section's colours unless you choose others.