The Grid area setting under Layout tab provide different options for Background color, border and grid line styling as shown in the image below.
While the Axes setting provide various visual adjustments to Series axis line and Value axis line. The image below shows the settings in the example of bar chart.
The axis texts can be styled like the other text objects in the chart. The layout options are under the Axis panel, as shown in the image below.
The image below shows an example of a styled X-axis text. The text is shown in orange.