With the picolight theme activated, in the dashboard>appearance>header, I am unable to change the header image because of an apparent bug:
"You can upload a custom header image to be shown at the top of your site instead of the default one. On the next screen you will be able to crop the image.
Images of exactly 1000 × 0 pixels will be used as-is"
I've tried many workarounds including setting my custom header in a different theme and switching over, nothing works because the widget rejects any images greater than 0px in height.
Please help, I really love this theme! Thanks!