Examine source code of TurboAnimator for Google Slides

{
  "manifest_version": 2,
  "name": "TurboAnimator for Google Slides",
  "description": "Automates tedious animation tasks in Google Slides with one keypress",
  "version": "1.2.1",
  "icons": {
    "128": "icon-128.png"
  },
  "commands": {
    "add-animation-1": {
      "description": "Add Preset 1 to selected objects"
    },
    "add-animation-2": {
      "description": "Add Preset 2 to selected objects"
    },
    "add-animation-3": {
      "description": "Add Preset 3 to selected objects"
    },
    "add-animation-4": {
      "description": "Add Preset 4 to selected objects"
    },
    "add-animation-5": {
      "description": "Add Preset 5 to selected objects"
    },
    "update-preset-1": {
      "description": "Replace animations for selected objects with Preset 1"
    },
    "update-preset-2": {
      "description": "Replace animations for selected objects with Preset 2"
    },
    "update-preset-3": {
      "description": "Replace animations for selected objects with Preset 3"
    },
    "update-preset-4": {
      "description": "Replace animations for selected objects with Preset 4"
    },
    "update-preset-5": {
      "description": "Replace animations for selected objects with Preset 5"
    },
    "delete-last-animation": {
      "description": "Delete last animation"
    },
    "delete-last-selected-animation": {
      "description": "Delete last animation from selected objects"
    },
    "clear-animations": {
      "description": "Clear all animations"
    },
    "clear-selected-animations": {
      "description": "Clear all animations from selected objects"
    },
    "lint-animations": {
      "description": "Scan all animations in current presentation"
    },
    "clear-lint-results": {
      "description": "Clear scan result for current presentation"
    }
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{f563494b-6b81-49fa-a531-fb287c8ff0de}"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "TurboAnimate",
    "default_popup": "popup.html"
  },
  "options_ui": {
    "open_in_tab": true,
    "page": "options.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://docs.google.com/presentation/d/*"
      ],
      "js": [
        "content-scripts/content.js"
      ]
    }
  ]
}