Examine source code of Solo Theme v.2

{
  "name": "Solo Theme v.2",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "geometrische-formen-mit-farbverlauf-auf-dunklem-hintergrund_23-2148417580.jpg"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(13, 12, 12, 1)",
      "bookmark_text": "rgba(106, 84, 169, 1)",
      "toolbar_field": "rgba(15, 15, 15, 1)",
      "toolbar_field_text": "rgba(104, 3, 158, 1)",
      "tab_line": "rgba(118, 22, 165, 1)"
    }
  }
}