Examine source code of BleuSolide

{
  "theme": {
    "images": {
      "theme_frame": "BleuReliefHaut.jpg.jpg"
    },
    "colors": {
      "frame": "#5b9aeb",
      "tab_background_text": "#d2d3f7"
    }
  },
  "version": "2.0",
  "name": "BleuSolide",
  "manifest_version": 2,
  "description": "Bleu solide"
}