Examine source code of SEI Plus

{
  "manifest_version": 3,
  "name": "SEI Plus",
  "version": "5.0.4.89",
  "description": "Funcionalidades opcionais e leves para o SEI. Ative apenas o que usar.",
  "browser_specific_settings": {
    "gecko": {
      "id": "sei-plus@edxl",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "permissions": [
    "storage"
  ],
  "action": {
    "default_popup": "options/options.html",
    "default_title": "SEI Plus",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "content_scripts": [
    {
      "matches": [
        "*://sei.mg.gov.br/*",
        "*://*.sei.mg.gov.br/*"
      ],
      "run_at": "document_start",
      "all_frames": true,
      "js": [
        "shared/tema.js",
        "content/tema_start.js",
        "content/ocultar_conclusao.js",
        "content/login_cedo.js"
      ]
    },
    {
      "matches": [
        "*://sei.mg.gov.br/*",
        "*://*.sei.mg.gov.br/*"
      ],
      "run_at": "document_idle",
      "all_frames": true,
      "js": [
        "shared/catalog.js",
        "content/registry.js",
        "content/version.js",
        "content/features/anotacoes.js",
        "content/features/arrastar_anexar.js",
        "content/features/buscar_arvore.js",
        "content/features/nao_assinados.js",
        "content/features/concluir_rapido.js",
        "content/features/senha_salvavel.js",
        "content/features/textareas_expansiveis.js",
        "content/features/exportar_arvore.js",
        "content/features/acoes_lote.js",
        "content/features/menu_lateral.js",
        "content/features/marca_barra.js",
        "content/aviso_atualizacao.js",
        "content/features/lista_compacta.js",
        "content/features/imprimir_lote.js",
        "content/editor/ponte_editor.js",
        "content/editor/ponte_editor_avancado.js",
        "content/features/tema_escuro.js",
        "content/features/atribuicao.js",
        "content/features/filtro_atribuicao.js",
        "content/features/carregar_todos.js",
        "content/loader.js"
      ]
    },
    {
      "world": "MAIN",
      "all_frames": true,
      "run_at": "document_idle",
      "matches": [
        "*://sei.mg.gov.br/*",
        "*://*.sei.mg.gov.br/*"
      ],
      "js": [
        "content/editor/ferramentas_editor.js",
        "content/editor/avancado_editor.js"
      ]
    }
  ],
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "vendor/pdf.min.mjs",
        "vendor/pdf.worker.min.mjs"
      ],
      "matches": [
        "*://sei.mg.gov.br/*",
        "*://*.sei.mg.gov.br/*"
      ]
    },
    {
      "resources": [
        "resources/recursos.html"
      ],
      "matches": [
        "*://sei.mg.gov.br/*",
        "*://*.sei.mg.gov.br/*"
      ]
    }
  ]
}