Claudiu Rentea

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Claudiu Rentea

Claudiu Rentea

@ClaudiuRDesign

I help founders, startups, and game studios design UX that boosts conversions, engagement, and trust 🎯

Bucharest, Romania Katılım Nisan 2018
223 Takip Edilen175 Takipçiler
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Claudiu Rentea
Claudiu Rentea@ClaudiuRDesign·
Design for intent, not just roles. In Restovision (my latest designed app): - Owners need control. - Diners want speed & fun. Same system → two experiences.
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Claudiu Rentea
Claudiu Rentea@ClaudiuRDesign·
Ideas FIRST. Polish AFTER. That’s the rule that stops 99% of creators from getting stuck in “perfect or nothing” mode. Messy sketches → clean, shareable cards. Every single time.
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Claudiu Rentea
Claudiu Rentea@ClaudiuRDesign·
A strong UI should communicate hierarchy before the user reads anything. That is why I keep the grid and spacing consistent. In this example, I use a 1440px max width on large screens, with an 8px spacing system, 32px between categories, and 16px between cards.
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Claudiu Rentea
Claudiu Rentea@ClaudiuRDesign·
Rule: No client previews until real-world testing is done. Pretty on screen means nothing if it flops in reality. Test it. Break it. Then reveal it. Good design works✅
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Darek Gusto
Darek Gusto@gustojs·
@ClaudiuRDesign Yeah, no need to reinvent the wheel when we can combine traditional gameplay workflows with new AI-based.
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Claudiu Rentea
Claudiu Rentea@ClaudiuRDesign·
From typeframe to final cards. I tried to blend gamified UI with a glass aesthetic. I rarely see this mix in games, so I wanted to bring some of my web design approach into game UI and create something fresher🔥 Thoughts?👀 #GameUI #GlassAesthetic #UIUX #glass #liquidglass
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Claudiu Rentea
Claudiu Rentea@ClaudiuRDesign·
@alex_barashkov Totally agree. This is my workflow now too for designing websites. I still need Figma for apps and games I design. Do you have some suggestions?
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Alex Barashkov
Alex Barashkov@alex_barashkov·
Product designers, stop looking for a canvas. Design directly in code. No middleman, no handoff, no missing states, no broken styles. Just exactly what you envision, in the real app.
Vlad Kamelskii@kusnizza

I’m a designer, and I built this feature end to end in 1.5 weeks, from design to development, using AI the whole way. I didn’t even touch Figma. A few takeaways from this process: AI is incredible. For the first time in my career, I don’t have a middleman between the idea in my head and the final result. I can design things the way I want and deliver the quality I need. No more endless back and forth with developers over small visual fixes, missing states, or tiny UI details. I’m honestly so excited about this technology that I want to stop people on the street and talk about Codex. Yes, I use Codex. Its UI output is not great, but that doesn’t really matter for me. I design the UI myself from scratch anyway. Whether AI produces complete garbage or slightly better garbage is not the point, because my goal is still to make it perfect. I expect to adjust it heavily either way. When I work on a feature, I usually start in Plan mode. Since I’m not an engineer, I try to go deeper into the architecture, ask AI a lot of basic questions, and sometimes verify things with our developers. After a few rounds of planning, I move into implementation. To avoid silly mistakes and code style issues, our developers maintain an Agents.md file and a set of skills that help a lot. The first result usually has weak UI, but it can already be a very useful prototype. At that stage, I focus less on polish and more on UX: the flow, the behavior, and the overall logic of the feature. During that process, I try to give AI more “vision” so it can work more independently. I let it run tests, build the app, read dev server logs, and even check behavior in the browser using agent-browser CLI. It can literally open the app, click through it, and reproduce scenarios on its own to verify that things work. Once the architecture is in place, I move into UI polish step by step. That usually means very specific requests like: increase the margin to 4px, change the font size to 16px, add opacity to this container, and so on. At this stage, I rely heavily on React Grab, which lets me select an element in the browser and get its file path, so AI spends less time searching and more time fixing. One more really useful AI workflow: while working on our Style Guide feature, I needed to adjust design tokens across more than 200 components. Checking how those tokens behave across so many components would be painful in any tool, even in Figma. So I asked AI to build a temporary page inside our app with a canvas that displayed all components, grouped by category, with different prop variations. That gave me a fast way to see how the style guide applied everywhere at once and quickly spot problems. After every major iteration, I ask AI to review the code and check for edge cases and security issues. We also have a large test suite, which helps prevent breaking parts of the app outside the feature itself. If you want designers to ship code directly into production, the environment around them matters a lot. This feature took 1.5 weeks and touched hundreds of files. At the end, I asked AI to generate a big PDF report comparing the branch against main, summarizing what changed and explaining architecture decisions, so it would be easier for both AI and developers to review before merging. I’m still learning every day about AI and coding while designing features directly in the product. And honestly, I find it fascinating. I don’t really want to go back to the days when I had to design everything in an intermediate tool that doesn’t ship code.

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Claudiu Rentea
Claudiu Rentea@ClaudiuRDesign·
@gustojs AI is very useful for experimenting before committing to a certain style or flow.
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Darek Gusto
Darek Gusto@gustojs·
With AI nowadays, I like to experiment in the dark first, especially when I don't have an exact plan yet. I generate a few prototypes based on basic specs with different user flows for AI to expand, to see what happens and get the first impression of what might work for me. Then, I move it more and more towards real specifications until I come up with a document I'm happy with.
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Claudiu Rentea
Claudiu Rentea@ClaudiuRDesign·
"What’s the best place to start when designing an app or game?" Founders ask this a lot. My answer is simple: start with user flows and typeframes. That helps you build the logic first, before spending time on visual polish.
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Claudiu Rentea
Claudiu Rentea@ClaudiuRDesign·
@gustojs @Affinity From the beginning of the last year, I've migrated to Affinity from Adobe and can't be more happy.
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Darek Gusto
Darek Gusto@gustojs·
Back in the past, I've moved on from Adobe Photoshop to use Affinity Photo and never looked back. Now it's been half of a year since @Affinity became a free app. It's a mix of all three previously paid products: • photo editor • vector designer • desktop publisher all in one tool. And it works with optional @canva subscription in case you want AI features on top of it. The March 2026 update brings a whole ton of small features, which I won't be bothering you with. But if you're not using Affinity yet, go for it. It's got Gusto's Seal of Approval, and that's the best guarantee you can get.
Affinity@Affinity

A brighter workspace, faster ways to turn selections into vectors, new brush controls and a completely new way to blend layers. Let’s get into what’s new in Affinity 🎉🧵👇

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Claudiu Rentea
Claudiu Rentea@ClaudiuRDesign·
I often see MVPs that make perfect sense to the founder, but feel confusing to everyone else. That usually leads to rigid flows and weak UX. Founders should build with the real user in mind, not with their own habits and logic.
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Claudiu Rentea
Claudiu Rentea@ClaudiuRDesign·
Clicking Regenerate 10 times is not iteration. It’s usually a sign the system has no strong rules. That’s how regen fatigue starts: same result, tiny random changes, slower quality, more frustration. When I see that happening, I stop clicking. I tighten the context, repeat the constraints, and change only one thing. More retries won’t save weak guidance.
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Claudiu Rentea
Claudiu Rentea@ClaudiuRDesign·
One feature makes AI iteration instantly smarter: side-by-side comparison. Not because it looks nice. Because it stops you from lying to yourself. You can see what changed. What improved. What got worse. That turns iteration into a real decision, not a vague feeling. If the difference is hard to see, the iteration is probably weak.
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Claudiu Rentea
Claudiu Rentea@ClaudiuRDesign·
Most designers or solo founders want to jump straight into the UI. I start with the less exciting part first: diagrams, user flows, and copy. Website, app, or game follows the same rule. If the structure is weak, no beautiful screen can save it.
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Claudiu Rentea
Claudiu Rentea@ClaudiuRDesign·
@rohan360d Yes, I design entire solutions and the UI is only a part of this process.
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Rohan
Rohan@rohan360d·
@ClaudiuRDesign This is the process of building solution not designing something only to design.
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Claudiu Rentea
Claudiu Rentea@ClaudiuRDesign·
AI gets worse when you let it improvise too much. My fix is simple: same rules, every time. Spacing. Typography. Layout limits. Tone. Visual constraints. I keep them in reusable files so the model works from a stable system, not from mood swings. Better prompts help. But better rules scale.
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Claudiu Rentea
Claudiu Rentea@ClaudiuRDesign·
@gustojs This is the exact flow for me too. I'm tired of this throw the dice way to create something.
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Darek Gusto
Darek Gusto@gustojs·
Oh I hate that so much. The only way to prevent it that I know is applying changes while upscaling to higher resolution at the same time, but this is also far from optimal. If I want some elements changed, I usually generate individual changes on top of the original generation and then combine them from multiple layers in other software (in my case that's Affinity), keeping as much from the original image as possible.
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Claudiu Rentea
Claudiu Rentea@ClaudiuRDesign·
Most AI image tools don’t refine well. They decay. A few regenerations in and everything starts slipping: layout drifts, text breaks, spacing gets weird, details stop matching. That’s why I don’t treat “Regenerate” like a workflow. I reset the rules, restate the structure, and guide the next step on purpose. Otherwise the tool slowly destroys the thing you were trying to improve.
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