Hi,
Not something I really have problems with using Everdo, but when looking at the output starting from command line I get the following messages:
damen@WilliWortel:~/Downloads$ (node:537747) DeprecationWarning: file property is deprecated and will be removed in v5.
(everdo:537747): Gtk-WARNING **: 09:01:08.280: Theme parsing error: gtk.css:3611:22: ‘none’ is not a valid color name
Loading config at /home/damen/.config/everdo/config.json
Switching app theme to .
(node:537747) electron: The default of contextIsolation is deprecated and will be changing from false to true in a future release of Electron. See [Discussion] Changing the defaults for nodeIntegration and contextIsolation to improve the default security posture of Electron applications · Issue #23506 · electron/electron · GitHub for more information
System ist Linux UbuntuDDE 20.10
damen@WilliWortel:~/Downloads$ uname -a
Linux WilliWortel 5.8.0-44-generic #50-Ubuntu SMP Tue Feb 9 06:29:41 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Perhaps helpful for further optimization 
For the rest, Everdo works like a charm for me - keep up the good works