SpacingJS
Measure the spacing between elements on webpage. Hold down Alt (Windows) / Option (Mac) key, and move the cursor.
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manifest.json
{
"update_url": "https://clients2.google.com/service/update2/crx",
"manifest_version": 3,
"name": "SpacingJS",
"version": "1.0.7",
"action": {},
"description": "Measure the spacing between elements on webpage. Hold down Alt (Windows) / Option (Mac) key, and move the cursor.",
"icons": {
"16": "icon16.png",
"48": "icon48.png",
"128": "icon128.png"
},
"author": "Steven Lei",
"homepage_url": "https://spacingjs.com",
"permissions": [
"activeTab",
"scripting"
],
"background": {
"service_worker": "background.js"
}
}