Right now any StyleSheet has a list of functions without a default implementation. Implementing a StyleSheet is really annoying, because you have to override all of the functions and not just the thing you want to change.
I recently wanted to just change the border_radius of a text_input and I had to write the following code.
Describe the bug
When Lively is paused, this white-blue menu can be seen in the bottom left. It is best seen with the taskbar on the top.
If the taskbar effect is set to blur and is at the bottom, this can also be seen when a window is maximized.