Adjustable members and channel list to focus more on chat

I know i can use CTRL - or + to reduce the total size, however, i want a setting to adjust the size of the name of people online and channel names as i primary want to focus on the chat only. The other two i want to be smaller without affecting font size and UI size. Similar to how to change the length of info in file explorer of the name of the file, date, and size of file.