Guys how do u background-colour only 1 slide, not all slides? At moment right-click inside “Click to add title” box - Edit Style - Area - Fill - Colour - Choose Colour - OK, and it changes all slides. Before it changed only 1 slide.
am working in View - Normal. Many many thanks:)
The style of the presentation objects ( title box, subtitle box, outline box ) ist part of the master slide. Therefore you need a new master slide for that slide, which you want to give a new style for the title box.
You can switch to master slide mode via menu View > Master Slide. Right click in the slide pane and choose “New Master”.
After the master is defined and you are back in Normal mode, choose your slide, then switch do Master Slides in the sidebar, and then make a single click on your new master in the sidebar to assign it to the active slide.
There exists other ways to the same result. Therefore get not confused, if you find different guides. Try the ways and take what works best for you.