Hello folks....
after a long time i am using calibre again. i made an update and then i found my old icon design Sphere in the configs... wow thanks for the developers.

I decided to update a new design special for calibre and offer it to you in some days. Completely free and without copyright. Use it and I hope you like it.
It wood be nice if the developers could send me a private message where i can upload the theme, otherwise i will upload it at deviant art (link will come).
So please wait a short time.
Potzblitz7