---
title: "Custom Calendar Background – Chrome extension stats, history and permissions"
description: "200,000 users, rated 3.83 by 152 people. Version 2.0.16, updated 2026-02-09. Requests 3 permissions."
url: "https://extensiontracker.com/extension/acjecbgflnhmeldadcbblhfdimhifpki"
---

# Custom Calendar Background

Live in the Chrome Web Store.

- Users: 200,000
- Rating: 3.83 from 152 ratings
- Last checked: 2026-11-08 15:25 UTC
- Users gained in 7 days: No change
- Users gained in 30 days: No change (+0.0%)
- Rank by users: #784 of 292,131 live extensions
- Rank in Art & Design: #9 of 3,655

## The listing

What the Chrome Web Store shows, as of the last check.

Summary from the listing:

> Adds background images to Google Calendar

- Extension ID: `acjecbgflnhmeldadcbblhfdimhifpki`
- Developer: [Pat Coleman](https://extensiontracker.com/developer/u8eaaa9fbe4be78750885362bdcabe7b1)
- Enhanced Safe Browsing: Trusted ([what this means](https://extensiontracker.com/enhanced-safe-browsing))
- Category: [Lifestyle › Art & Design](https://extensiontracker.com/category/lifestyle/art)
- First published: 2017-10-27
- Last updated: 2026-02-09
- Version: `2.0.16`
- Size: 42.7 KiB
- Minimum Chrome: 88
- Languages (1): English
- Website: `useit.today`
- Support page: `https://calendar.useit.today/help`
- Chrome Web Store: <https://chromewebstore.google.com/detail/custom-calendar-backgroun/acjecbgflnhmeldadcbblhfdimhifpki>
- View its code or download CRX: <https://crxpeek.com/extension/acjecbgflnhmeldadcbblhfdimhifpki>
- Search Google for the ID: <https://www.google.com/search?q=%22acjecbgflnhmeldadcbblhfdimhifpki%22&tbs=li:1>

## Users over time

One row per check, newest first, as shown on the Chrome Web Store.

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-11-08 | 200,000 | 3.83 | 152 |
| 2026-11-02 | 200,000 | 3.83 | 151 |
| 2026-10-26 | 200,000 | 3.80 | 150 |
| 2026-10-19 | 200,000 | 3.80 | 150 |
| 2026-10-12 | 200,000 | 3.70 | 148 |
| 2026-10-05 | 200,000 | 3.70 | 148 |
| 2026-09-28 | 200,000 | 3.70 | 148 |
| 2026-09-26 | 200,000 | 3.70 | 148 |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-26.

## Developer history

Moves to another publisher account and new contact emails, newest first.

No move to another account and no new contact email since tracking began on 2026-09-26.

We know contact emails only by a keyed hash, so they're never shown. Recent changes: [Account and contact changes](https://extensiontracker.com/owners/).

## What it can access

From the extension's manifest, in plain language.

### Sites where it runs scripts

- `https://calendar.google.com/calendar/*`: calendar.google.com

### Browser features

- `identity`: Sign you in with your Google account
- `identity.email`: Read your Google account's email address
- `storage`: Save settings and data in your browser

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked every week, because it has 1,000 or more users, and again whenever a new version appears. Last checked 2026-11-08 15:25 UTC; next check around 2026-11-15.

How the data is collected: <https://extensiontracker.com/methodology>.

## Cite this page

Extension Tracker. “Custom Calendar Background” (acjecbgflnhmeldadcbblhfdimhifpki). Chrome Web Store data, last checked 2026-11-08. https://extensiontracker.com/extension/acjecbgflnhmeldadcbblhfdimhifpki. Accessed 2026-11-13.

```bibtex
@misc{extensiontracker_acjecbgflnhmeldadcbblhfdimhifpki,
  title   = {Custom Calendar Background (acjecbgflnhmeldadcbblhfdimhifpki)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-11-08},
  url     = {https://extensiontracker.com/extension/acjecbgflnhmeldadcbblhfdimhifpki},
  urldate = {2026-11-13}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/acjecbgflnhmeldadcbblhfdimhifpki>. It isn't affiliated with Google. The data is free to reuse under CC BY 4.0 (<https://creativecommons.org/licenses/by/4.0/>), crediting Extension Tracker. Every page except search comes as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.