The filenames shown in the tabs are all lowercase regardless of capitalization of the actual file name.

It's a small thing but I'd prefer the capitalization to match the file name and it would be more consistent with other applications.

'MyToDo.txt' and 'BikeToDo.txt' (as the actual file names) rather than 'mytodo.txt' and 'biketodo.txt'.

OS: Windows 10 Home edition, 22H2.
Sleek: v2.0.21, recently downloaded from the Microsoft Store