Start with the audience, not the visual treatment
Emotional connection through brand design starts with research into the audience and what matters to them. That understanding informs the idea, which can then be explored in workshops to determine how best to communicate it visually and verbally. Graphics, typography and messaging work together rather than as separate layers of decoration.
The relevant visual cue is not always an obviously emotional image. In a website project aimed at developers, The Frameworks incorporated coding elements into the front-end design to signal an understanding of the audience's language. The connection came from recognition: details that might mean little to another viewer could resonate with a developer. This approach makes audience understanding the basis for design decisions, rather than assuming that the same visual treatment will connect with everyone.