Examine source code of Blue Percobaan

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#aac9f0",
      "tab_background_text": "#030000"
    }
  },
  "version": "2.0",
  "name": "Blue Percobaan",
  "manifest_version": 2,
  "description": "This theme is simple theme. it's one of my project testing"
}