How can you fill objects with colour in Impress?

In Impress, you can fill objects with color by selecting the object you want to modify, then right-clicking on it and choosing "Area" from the context menu. In the Area dialog, navigate to the "Fill" tab, where you can select a color from the palette or input a specific color code. You can also choose different fill options like gradients or patterns. After selecting your desired color, click "OK" to apply the changes.