When uploading images, Gyazo application gets the application name at the very front of the window. By attaching attribute information such as application name to the image, it is possible to confirm the source of the image and search the image by IvySearch, thereby improving the convenience of Gyazo.
In macOS Mojave, when trying to capture an image, the following dialog is displayed for each application in the foreground of the window. When this dialog is displayed, please click "OK". Thereafter, this dialog will not be displayed for the same application.