Which of the following actions does NOT contribute to decluttering a visual presentation?

Eliminating all grid lines in a visual presentation may not necessarily contribute to decluttering. While it might seem intuitive that removing visual elements like grid lines would simplify a presentation, grid lines can actually provide a helpful framework that enhances the viewer's ability to interpret the data. They can help align elements, making comparisons easier and providing structure to complex information.

In contrast, using a legend to identify color coding clarifies the meaning of different data points, enhancing understanding without overcrowding the visual. Removing redundant information is crucial for decluttering, as it focuses the audience's attention on the most important insights. Decreasing saturation also contributes to decluttering by softening colors, making them less overwhelming and ensuring that the key data stands out more clearly. Each of these actions directly aids in creating a clearer, more effective visual presentation, making the focus on critical information more pronounced.