Examine source code of Minimal Ember Slate Theme

{
  "manifest_version": 2,
  "name": "Minimal Ember Slate Theme",
  "version": "1.0",
  "description": "A sleek dark slate theme with warm ember highlights for Firefox.",
  "theme": {
    "colors": {
      "frame": "#16181d",
      "tab_background_text": "#f1f5f9",
      "toolbar": "#23272f",
      "toolbar_text": "#e5e7eb",
      "tab_line": "#ff7849",
      "toolbar_field": "#121417",
      "toolbar_field_text": "#f8fafc"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{9ef7fb19-17e6-4021-b0f5-0dd219ba47cb}"
    }
  }
}