Examine source code of Midnight Dark Blue

{
  "manifest_version": 2,
  "name": "Midnight Dark Blue",
  "version": "1.0.3",
  "description": "Image-free dark-blue theme optimized for native vertical tabs.",
  "author": "Local",
  "browser_specific_settings": {
    "gecko": {
      "id": "midnight-dark-blue@yourdomain.example",
      "strict_min_version": "100.0"
    }
  },
  "theme": {
    "properties": {
      "color_scheme": "auto"
    },
    "colors": {
      "frame": "#111827",
      "frame_inactive": "#0E1626",
      "tab_background_text": "#E5E7EB",
      "tab_selected": "#1A2436",
      "tab_line": "#60A5FA",
      "tab_background_separator": "#2A3954",
      "tab_text": "#E5E7EB",
      "tab_loading": "#60A5FA",
      "toolbar": "#111827",
      "toolbar_text": "#E5E7EB",
      "toolbar_vertical_separator": "#2A3954",
      "toolbar_top_separator": "#2A3954",
      "toolbar_bottom_separator": "#2A3954",
      "bookmark_text": "#E5E7EB",
      "button_background_hover": "#24324A",
      "button_background_active": "#2A3954",
      "icons": "#E5E7EB",
      "icons_attention": "#60A5FA",
      "toolbar_field": "#1A2436",
      "toolbar_field_text": "#E5E7EB",
      "toolbar_field_border": "#334765",
      "toolbar_field_focus": "#1E2B42",
      "toolbar_field_text_focus": "#FFFFFF",
      "toolbar_field_border_focus": "#60A5FA",
      "toolbar_field_highlight": "#60A5FA",
      "toolbar_field_highlight_text": "#111827",
      "toolbar_field_separator": "#334765",
      "popup": "#1A2436",
      "popup_text": "#E5E7EB",
      "popup_border": "#334765",
      "popup_highlight": "#24324A",
      "popup_highlight_text": "#FFFFFF",
      "sidebar": "#162033",
      "sidebar_text": "#E5E7EB",
      "sidebar_border": "#2A3954",
      "sidebar_highlight": "#24324A",
      "sidebar_highlight_text": "#FFFFFF",
      "ntp_background": "#111827",
      "ntp_card_background": "#1A2436",
      "ntp_text": "#E5E7EB"
    }
  }
}