Did you control for the fact that the 'Try demo' button is red and the 'Buy now' button is blue? I'm sure I've read about A/B test studies (probably on the VWO

Did you control for the fact that the 'Try demo' button is red and the 'Buy now' button is blue? I'm sure I've read about A/B test studies (probably on the VWO blog itself), which showed red buttons had higher clickthrough rates than other colours, which could be a big confounding factor.