Examine source code of Spring Tulips...

{
  "theme": {
    "images": {
      "theme_frame": "SpringTulips_header_byLisa.jpg"
    },
    "colors": {
      "frame": "#e0e4ed",
      "tab_background_text": "#666600"
    }
  },
  "version": "2.0",
  "name": "Spring Tulips...",
  "manifest_version": 2,
  "description": "orange, yellow, white and pink tulips, flowers, Easter, Springtime, floral, blossoms\n\nchild friendly persona\n\nPersonas by LisaAtTheBeach"
}