Make websites more accessible for people with colour vision deficiencies.
Color Vision Deficiency Assistant Extension
It is designed to be able to provide concrete help to people who have any type of color blindness, through a feature list born from in-depth user research.
The main features are:
- Highlight buttons
- highlights all the interactable areas of the web page you are visiting, so that you can click exactly where you need to.
- Underline links
- not every links on the internet are underlined, many only have a different color tone. Through this feature you can make any link underlined, in order to immediately perceive the contrast.
Among the features currently available there are:
- Emphasise (visited) links
- Force clear focus state
- Disable all styling
Color Vision Deficiency Assistant is in continuous development, with the mission of helping the colorblind community.
Source Manifest.json
"update_url": "https://clients2.google.com/service/update2/crx",
"manifest_version":3,
"version":"0.3.0",
"name":"Color Vision Deficiency Assistant",
"short_name":"Color Vision Deficiency Assistant",
"description":"Make websites more accessible for people with colour vision deficiencies.",
"author":"Carlos Jeurissen",
"homepage_url":"https://apps.jeurissen.co/color-vision-deficiency-assistant",
"developer":{"name":"Carlos Jeurissen",
"url":"https://apps.jeurissen.co/"},
"content_security_policy":{"extension_pages":"default-src 'none'; child-src 'none'; connect-src 'none'; font-src 'none'; frame-src 'none'; img-src 'none'; manifest-src 'none'; media-src 'none'; object-src 'none'; worker-src 'none'; script-src 'self'; script-src-attr 'none'; script-src-elem 'self'; style-src 'none'; style-src-attr 'none'; style-src-elem 'none'; base-uri 'none'; form-action 'none'; frame-ancestors 'none'; block-all-mixed-content; upgrade-insecure-requests"},
"browser_specific_settings":{"gecko":{"id":"[email protected]"}},
"externally_connectable":{"ids":[],
"accepts_tls_channel_id":false},
"icons":{"16":"/images/icon-16.png",
"24":"/images/icon-24.png",
"32":"/images/icon-32.png",
"48":"/images/icon-48.png",
"64":"/images/icon-64.png",
"72":"/images/icon-72.png",
"96":"/images/icon-96.png",
"128":"/images/icon-128.png"},
"permissions":["scripting",
"storage",
"tabs"],
"host_permissions":["
"background":{"service_worker":"/background.js"},
"options_ui":{"page":"/views/popup.html?options=1",
"browser_style":false},
"action":{"browser_style":false,
"default_popup":"/views/popup.html",
"default_icon":{"16":"/images/icon-16.png",
"24":"/images/icon-24.png",
"32":"/images/icon-32.png",
"48":"/images/icon-48.png",
"72":"/images/icon-72.png"},
"theme_icons":[{"light":"/images/icon.svg",
"dark":"/images/icon-dark.svg",
"size":16}]},
"commands":{"_execute_action":{}},
"content_scripts":[{"all_frames":true,
"css":["/styles/content-script.css"],
"js":["/scripts/content-script.js"],
"matches":["
"run_at":"document_start"}]}
How to download and manually install Color Vision Deficiency Assistant extension for Chrome
Looking for a way to install Color Vision Deficiency Assistant 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 Color Vision Deficiency Assistant extensions manually, this article outlines two simple methods to effortlessly install Color Vision Deficiency Assistant extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.
Method 1: Download Color Vision Deficiency Assistant extension and manually install through Drag &Drop
If you ever need to manually install a Color Vision Deficiency Assistant 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 Color Vision Deficiency Assistant Extension by clicking the "Download CRX" button on the website.
Look for the Color Vision Deficiency Assistant extension you wish to install. Go to the website and download the Color Vision Deficiency Assistant extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for Color Vision Deficiency Assistant 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 Color Vision Deficiency Assistant 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 Color Vision Deficiency Assistant extension for Chrome and install in Developer Mode
This is another method to install Color Vision Deficiency Assistant 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 Color Vision Deficiency Assistant extension file
Select and download the Color Vision Deficiency Assistant 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 Color Vision Deficiency Assistant 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 Color Vision Deficiency Assistant 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 Color Vision Deficiency Assistant 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 Color Vision Deficiency Assistant extension in 2 ways. We hope this guide proves helpful.
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