We can try to base the Gatsby/Volto front end design on the existing plone.com theme but it would be better to have something a bit more modern. The site was launched in April 2015 (hard to believe it has been already 5 years!). The Volto Hands On Training by Victor at training.plone.org/5/voltohandson is based around that idea, of copying the existing theme, but because it's a short training class it does not get into how to wire the theme up with the content.
@macagua@tkimnguyen
I could help with the implementation of the new layout.
I have worked with React/Gatsby and have done the training on Volto, so, even though there would be a learning curve to fully implement a theme in Volto, I think I could help with the Front-End part.
But I agree that it would be good to have a new design to work on.