What action should a business analyst take to display the labels in red and increase the font size of a chart title?

To achieve the goal of displaying labels in red and increasing the font size of a chart title, editing the chart properties for color and font size is the most direct and effective action. Within Qlik Sense, the chart properties panel allows users to customize the appearance of individual chart elements, including the title.

By specifically adjusting the color settings, you can set the title or labels to red, and by modifying the font size settings, you can increase the size of the chart title to enhance its visibility and impact. This approach provides the necessary granularity to make tailored visual adjustments without affecting the entire application or other components.

In contrast, changing the theme for the entire app would impact all visual elements consistently, and it wouldn't allow for the precise customization needed for just one chart's labels or title. Applying a new data model does not pertain to visual customization, as it focuses more on data structure and relationships rather than presentation. Utilizing default settings in Qlik Sense means you would not be able to customize the labels or title to red or adjust their size at all, which wouldn't meet the desired outcome.