Examine source code of spongebob meme

{
  "name": "spongebob meme",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "spongebob.png"
    },
    "colors": {
      "frame": "rgba(195, 203, 219, 0)",
      "tab_background_text": "rgba(252, 248, 0, 1)",
      "toolbar": "rgba(20, 19, 19, 0.59)",
      "bookmark_text": "rgba(252, 248, 0, 1)",
      "toolbar_field": "rgba(0, 0, 0, 1)",
      "toolbar_field_text": "rgba(252, 248, 0, 1)"
    }
  }
}