Please add a second notification sound and allow users to choose which sound corresponds to which notification type. I would like to distinguish between urgent notifications that require immediate attention and those that can be read later. Example: If there is a notification about a test invitation, I want a specific sound to indicate, that I need to react as fast as possible to not miss the test, that might be a real cool one. Even if I am for example in the supermarket, I want to take out my phone and accept the invitation quickly. On the other hand, if there is a notification about a New bug comment, I want to hear a different sound, so I know, there is something I need to address - but it is not that urgent to immediately take out my phone.