https://support.apple.com/en-md/guide/keynote-ipad/tan30509ce0d/ipados
Show or hide text placeholders in Keynote on iPad - Apple Support (MD)
In Keynote on iPad, add or remove placeholders for text.
show or hidetext placeholders
https://www.coffeecup.com/forums/site-designer/text-colour-on-placeholders/?post_id=295828
Text colour on placeholders - Post ID... | CoffeeCup Software
CoffeeCup Forums - Text colour on placeholders - Post ID 295828 - When RSD first appeared, there was an attribute 'placeholder'. It was removed because of some...
textcolourplaceholderspostid