The phrase refers to the search for pre-made, transparent background images, depicting various human emotional responses or expressions. These images are formatted as Portable Network Graphics and are readily available for acquisition at no cost. A typical application might involve incorporating such a visual element into a presentation to convey a specific feeling related to the presented data.
Accessing and utilizing these graphical resources can significantly streamline content creation across various digital platforms. Time and resources are saved by foregoing the need to create original artwork or license existing images. Historically, the availability of such free resources has democratized visual communication, enabling individuals and organizations with limited budgets to enhance their projects.