The software you're referring to is called **CleanMyMac X**. Here's a brief overview of CleanMyMac X: - It's a Mac optimization tool that helps in cleaning up junk files, optimizing system performance, and more. - The interface categorizes different types of files and issues into distinct areas, each represented by a specific color. For instance, system junk might be one category, while photo junk could be another. This makes it easy for users to see what kind of clutter they have on their systems and clean it up accordingly. - The application indeed has a yellow icon, which is quite distinctive and makes it easily recognizable among other apps on your Mac. Hope this helps! Let me know if there's anything else you'd like to know.

The software you are looking for is called 'CCleaner'. It is a popular tool for cleaning up unnecessary files, temporary internet files, and system logs from your computer. CCleaner also offers a feature to sort files into different categories, which can be color-coded for easy identification. The application has a yellow icon and is available for download on various platforms.