Adjust your sidebar without making everything else large or tiny!
The following plugin was suggested here: powercord-community/suggestions#141
Zoom In:
Ctrl Shift +
Zoom out:
Ctrl Shift -
Reset Zoom:
Ctrl Shift R
Go to your plugins folder and run the following:
git clone https://github.com/HooferDevelops/sidebar-zoom
Download the following zip, and extract it into your plugins folder.
https://github.com/HooferDevelops/sidebar-zoom/archive/master.zip