Change table gridlines and colours in Keynote on Mac

You can change the look of a table by changing its outline, showing or hiding gridlines, and using alternating row colours.

Change the table outline and gridlines

Click the table, then in the Format sidebar, click the Table tab.
Do any of the following:
- Change the outline: In the Table Outline section of the sidebar, use the controls to change the line type, thickness and colour.
- Change the gridlines: In the Gridlines section of the sidebar, click the buttons to add or remove gridlines from the table body, from the header rows and columns, and from footer rows.

You can change the border and background of any selection of table cells.

Select the cells you want to change.
To change all the cells in a table, click the table, then click in its top-left corner.
In the Format sidebar, click the Cell tab.
Do any of the following:
- Change cell borders: In the Border section, click a border layout button below Border to choose which borders you want to format, then click the Border Styles pop-up menu and choose a border style for the selected borders.
  After you choose a border style, additional controls appear for choosing a line colour and thickness and a dotted or solid border.
  Tip: To select multiple borders, click a border layout button, then Command-click additional borders.
- Change the background: In the Fill section, click the colour well, then select a fill option. See Fill shapes and text boxes with colour or an image in Keynote on Mac.

You can also create rules to automatically change a cell’s look when the value in the cell meets certain conditions. See Highlight cells conditionally in Keynote on Mac.

Click the table, then in the Format sidebar, click the Table tab.
In the sidebar, select the Alternating Row Colour tickbox, then click the colour well to select a colour.

Row colours don’t alternate for header columns. Header columns have their own look based on the table style you choose.

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