https://support.apple.com/en-vn/guide/pages-iphone/tanc80345ef4/ios
In Pages on iPhone, change the table outline, show or hide gridlines, add borders and color to cells, and change the color of alternating rows.
changetablegridlinescolorspages
https://support.apple.com/en-bh/guide/pages-ipad/tan8ba5fdcfa/ipados
In Pages on iPad, add a legend, gridlines, trendlines, error bars, reference lines, labels, and other markings to a chart.
a legendaddgridlinesmarkingspages
https://support.apple.com/en-lk/guide/numbers/tane80651fe1/mac
In Numbers on Mac, change the table outline, show or hide gridlines, add borders and color to cells, and change the color of alternating rows.
mac applechangetablegridlinescolors
https://support.apple.com/en-sg/guide/pages-iphone/tan8ba5fdcfa/ios
In Pages on iPhone, add a legend, gridlines, trendlines, error bars, reference lines, labels and other markings to a chart.
a legendaddgridlinesmarkingspages