What is open, and what is ours
License
The Lotus circuit's schematic is open source, as it was for the Lotus JohnH M2: Creative Commons Attribution-NonCommercial.
That covers the schematic only. You may copy it, build from it, change it and share what you make, as long as you give credit and don't use it commercially. Credit John Hewitt (JohnH) for the design and Fromel Electronics for the Lotus. The design was developed in the open in John Hewitt's thread on the Marshall forum, Simple Attenuators – Design And Testing. Fromel builds the Lotus under a licensing agreement with John Hewitt.
The license in full: Creative Commons Attribution-NonCommercial 4.0 International.
Everything else belongs to Fromel Electronics
The Lotus M3's panel art, lid art and circuit board designs, the schematics specific to each Lotus M3 model, and the art and pictures on this site are the property of Fromel Electronics. All rights reserved.