Examine source code of melodyx5

{
  "name": "melodyx5",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "melodyx5.png"
    },
    "colors": {
      "frame": "rgba(12, 12, 13, 0)",
      "tab_background_text": "rgba(96, 209, 15, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(57, 224, 11, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0)",
      "toolbar_field_text": "rgba(12, 242, 24, 1)"
    }
  }
}