Hey Rumbledesign,
first of all, thank you for the purchase!
The green “Ikebana” tile in the theme demo is a “link”-format project with a thumbnail (featured image) and link URL pointing to the website front page ;) You can find more information about the formats on pages 8-9 of the theme manual. Note that in order for it to stay in front of all other project in the grid, you’d need to declare it as “sticky” in the “Sticky (Always First) meta box while in the project editor mode. If you want that tile to reveal the background, you can use an “opacity” CSS rule for that particular tile.
Sincerely,
Andrii / Satori Studio