Fig. 2
From: ENIGMA-Viewer: interactive visualization strategies for conveying effect sizes in meta-analysis
Scented edges to reduce the context switching cost. Here curved lines connect the corresponding regions between two studies (top and bottom ones). The color on each curve varies gradually in the way that the color in the top bar uses the color in the bottom one and vice versa. In this way, a viewer does not need to trace the link to compare study differences