Set GMail message viewer and editor styles by label. e.g. mailing list messages that are best viewed with a monospace font.

Latest Version

Version
0.8
Update
May 11, 2020
Size
30.79KiB
Developer
Category
Users
83
Rating
4.5 ★
Manifest Version
2
Web Store Status
Languages Support
English (United States)
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Permissions
Https://mail.google.com/
Storage
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GMail Label Styler Extension

Note: updated for the latest GMail as of 2020-05-11

Enables user to apply CSS to GMail message viewer and editor for selected labels only. Created for mailing list message viewing and editing that works best with monospace fonts but useful in many situations. Configuring CSS properties and one or more label names.

Can be used to increase font size in GMail editor without causing the email to be sent in the larger font or even rich text (HTML) format. Only affects your view of the message in the editor, not the recipient.
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "name": "GMail Label Styler", "description": "Set GMail message viewer and editor styles by label. e.g. mailing list messages that are best viewed with a monospace font.", "version": "0.8", "permissions": [ "https://mail.google.com/", "storage" ], "options_page": "options.html", "content_scripts": [ { "matches": ["https://mail.google.com/*"], "js": ["zepto.min.js", "content.js"] } ], "icons": { "16": "icon_16.png", "48": "icon_48.png", "128": "icon_128.png" }, "manifest_version": 2}
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How to download and manually install GMail Label Styler extension for Chrome

Looking for a way to install GMail Label Styler extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install GMail Label Styler extensions manually, this article outlines two simple methods to effortlessly install GMail Label Styler extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download GMail Label Styler extension and manually install through Drag &Drop

If you ever need to manually install a GMail Label Styler extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the GMail Label Styler Extension by clicking the "Download CRX" button on the website.

Look for the GMail Label Styler extension you wish to install. Go to the website and download the GMail Label Styler extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for GMail Label Styler extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the GMail Label Styler extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download GMail Label Styler extension for Chrome and install in Developer Mode

This is another method to install GMail Label Styler extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the GMail Label Styler extension file

Select and download the GMail Label Styler extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the GMail Label Styler extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your GMail Label Styler extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the GMail Label Styler extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install GMail Label Styler extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Paul White (ID: 0000003a19f4dd62) Voted 3 ★ - Updated 03/11/2020 The idea is great, but unfortunately not working on new Gmail interface. I make extensive use of labels to track 100s of mails from system health checks. Hopefully someone finds a work around. Paul

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David Brodbeck (ID: 00000008dc59051a) Voted 5 ★ - Updated 01/18/2018 Really basic, but also really handy. I'm a system administrator and get a lot of reports with formatted ASCII tables, etc. in my email. This lets me make them properly readable again.