Changing colour of textboxes

I’m assuming that you want one option to change all text boxes at once. Otherwise, as Nedim suggests, you want to use staters. Use the Selected state, and a click changes it, and the next changes it back, without triggers. Include “click to change text background color” in the overall instructions.

Like Jerson says, you can use javascript, but you have to write a script for each box.

I would create Text box with the second state as the selected state. Then I would right click it and set it as the default. If that works, Bob’s your uncle, but I have read of people that have not always had good results using the default option. In that case, create the first box, and duplicate it for all succeeding boxes. Nevertheless, it’s worth a try.

If the project is already underway, create the Selected state, and try using the format painter. It doesn’t always work the way you predict,  but if it does, it is a pretty quick to spread that state.  You still have to change each box individually.