If you’ve ever used Design Ideas in PowerPoint and never ended up with a consistent PowerPoint slide design, you’re not alone. Each slide looks lovely on its own, but look at them as a complete deck and it’s like four different presentations got shuffled into one file. I was reminded of this exact problem recently, so let’s talk about why it happens and how to actually fix it.
Tip: Start with a theme, not just Design Suggestions
Before we get into fixing things, here’s a tip that helps from the start. If you want a standard, predictable look, use PowerPoint’s built-in themes on the Design tab rather than relying purely on Design Suggestions. Pick one of the ready-made themes, and sides in Design Suggestions will offer you ideas that match it, rather than pulling from anywhere.
Why your slides end up mismatched
I built a quick four-slide deck, using Copilot to help with one slide. When I opened Design Suggestions for each slide individually, I got a fresh set of options every time. Some were lovely. None of them matched each other.
By the time I’d picked a design I liked for each slide, I had four good-looking slides and not a single cohesive deck.
When I choose an option, I think it should be easy to copy certain design elements, like a nice line or accent shape to another slide. However, I’ve looked in all the obvious places, on the slide – nope; in the slide master – nope. They are nowhere to be found when! I’ll be honest, I still haven’t worked out how to do that manually.
This is where Copilot comes in
Rather than fighting with Design Suggestions slide by slide, I turned to Copilot and asked it to sort the whole thing out. A basic prompt actually worked reasonably well, but I wanted something more reliable, so I asked Copilot itself to help me write a better one.
The advice it gave me was to include three things: scope, anchor, and constraints. In plain English, that means what you want changed, what it should be based on, and anything it shouldn’t touch.
The prompt I used:
“Apply a consistent design across all slides, using slide 1’s colours and typography as the anchor. Keep all existing text and content — just align backgrounds, headings, accents, and spacing so the deck feels like one set.”
You can adjust this depending on what you need. Don’t want it changing your titles or wording? Say so. Want it to add design elements to any slides that are a bit bare? Add that in too.
Seeing the result
Once Copilot had done its thing, I switched to Slide Sorter view to check the whole deck at a glance. What had been four slightly different presentations now looked like one, single, cohesive deck. Same colours, same feel, same structure, all the way through.
Tip: A shortcut worth knowing
If you’d rather skip Design Suggestions altogether, there’s an easier route. Ask Copilot to build the whole presentation for you from the start. It will generally apply one consistent look across every slide automatically. No consistency-fixing required afterwards.
That said, if you enjoy browsing Design Suggestions and trying out different looks slide by slide, there’s nothing wrong with that. Just know you can bring everything back together afterwards with a well-written Copilot prompt, using the scope, anchor, and constraints approach above.
Created with the help of Claude AI from an original transcript.
YouTube Videos
I Asked Copilot to Build the Same Presentation Twice — Here’s What Happened
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