Text in graphics - presentation slides

In the Graph Presentation tool, there is the option of layout with graph and description, which makes it useful and complements the interpretation of the graph data, but the description part consumes 50% of the slide without the possibility of resizing. There could be a way to resize the space consumed and change the background color.
Sometimes you need a little information to complement the graphs, but the way it is there is a waste of space on the slide.