Thanks for your great product!!!
On a 4k Linux laptop using the HiDPI setting:
- there is too less space for the channel numbers and channel names, as the left column stays too narrow in that mode
- the icons on the left for the channels would best be scaled up in HiDPI mode, they are fairly small right now
Note: the HiDPI mode normally scales all fonts and icons up by a factor of two, in order to make them readable on a laptop with a 4k screen. These laptops become more common these days, and more software does well support it.