Image Background Color Picker is a free browser add-on developed by Marnes for Chrome users. This add-on offers plain image customization by letting users choose a background color. It also has a checkerboard option that can be applied to all direct image view tabs. The add-on is also available for Firefox users on the Mozilla add-on store.

Image Background Color Picker is easy to use and provides a simple solution for those who want to customize their plain images. The add-on is lightweight and does not affect the user's browsing experience. The add-on can be accessed directly from the browser and offers a wide range of color options that can be chosen according to the user's preference.

Overall, Image Background Color Picker is a useful tool for those who want to personalize their plain images. The add-on is free and can be easily installed from the browser's add-on store. Users can also visit the developer's homepage for more information and file issues on the linked support site.