This is a Chrome extension for customizing the font and background-color of the DevTools Console.

Install via the official extension page →

Currently, this extension only works for Chrome browsers. If you using Firefox, you can still achieve the same customizations by following the instructions outlined in Firefox Developer Tools section below.

Because you may want the appearance of things printed to the browser dev console to more closely match the theme in your source code editor.

Most pretty-printing utilities designed to support syntax-coloring (theming) for browser dev tool consoles can only color the foreground and background of "spans" of text. If you want to perfectly match the themed experience of your source code editor, you will need to manually set the font-family and background color of your browser dev console.

If you are using Firefox, ignore this section and follow the instructions in the following section.

First, you will need to set the general appearance of your Chrome browser's DevTools UI to "Light" or "Dark", depending on whether you are using a light or dark Fireworks theme. This can be done by opening DevTools on any page, clicking the Settings gear icon button, and then Preferences > Appearance > Theme. Official instructions here.

Now you can open the Devtools Console Customizer popup and customize the font-family and background color. After making a change via the extension, you will need to close and reopen DevTools. If you are switching from a light to dark theme or vice-versa, remember to also reset the general appearance of DevTools in Settings > Preferences > Appearance > Theme, as described above.

Currently, this extension only available for Chrome. You can, however, customize the font-family and background color of the dev console in Firefox, although this has to be done manually.

First, open the Firefox Developer Tools on any page - just right-click and select Inspect. Then click on the ••• button in the top right of this panel and select Settings to get to the Settings panel. You should see a Themes section which will let you select Light or Dark.

You can achieve the equivalent customizations to the console background-color and font-family by providing a special .css file. This repo provides a starter userContent.css file to make this easy. You will need to place this file in the correct directory on your computer so that Firefox can read it when it launches. Follow the instructions outlined here to locate this directory. Please note that this file, which is necessary for customizing the Developer Tools console in FireFox, is called userContent.css, NOT userChrome.css (as mentioned in the linked tutorial). You can put this in the proper directory as explained in the linked tutorial and change it as needed to align with your chosen theme. Remember to quit and restart Firefox if you make any changes or updates to this userContent.css file.