Imagus - The extension is intended to complement image features that (I think) is missing from Opera by...
Slack Themes - Make your Slack pretty with custom themes
Thumbnail Zoom Plus - The official site of the Thumbnail Zoom Plus add-on for Firefox
Rainglow Color Themes - 320+ color themes for a variety of editors and software.
Image Max URL - Help find larger or original versions of images, including a customizable image popup feature
IIS Inspector - IIS Inspector is a log management software that allows you to view and manage IIS logs on Windows servers.