Why GLANCE READABILITY Matters: Not Readable Instantly... Not Read At All


Oliver Bradley

 

Trained in the Unilever school of marketing, I’ve spent most of my career obsessing over visual content for commerce. My name’s Oli Bradley and I’ve been invited to write a little thought piece about my recent work with Cambridge University’s Inclusive Design team and to explain why Neem built a tool called Rhino… why it matters to the shopper experience… what it tests… and why that should matter to you if you create digital visuals with any text or icons on them.

one. The perfect storm in visual commerce.


Right now, visual commerce is in a perfect storm that most brands are still underestimating.

  1. Eyesight is getting worse globally
    Ageing populations mean more shoppers with reduced ocular accommodation; by their 40s, many people struggle to read small details even with “good” eyesight. At the same time, heavy screentime is driving myopia in younger consumers, with the problem particularly acute in parts of Asia.
  2. Online shopping has moved to tiny smartphone screens
    Around three-quarters of retail traffic is now on mobile, yet the vast majority of product images were originally designed for big desktop or physical pack contexts. Designing a hero image now effectively means designing for a roughly 20 mm square canvas – a brutally small area in which to communicate anything meaningful.
  3. A content explosion powered by generative AI
    Generative AI has made it trivially cheap to create endless content variations, but quantity without quality control is a liability. Without systematic ways to assess visual quality, brand teams risk flooding retailers with on-screen noise that is beautiful on a 27-inch monitor and useless in a 16–20 mm thumbnail.

What brand teams actually need now are AI superpowers that help them assess the quality of the visual content their agencies are creating for commerce – at scale, at speed, and in a way that reflects how real shoppers actually see, scan, and decide.

 

two. A simple ABC framework:

Attention, Branding, Communication


Drawing on my Unilever training, there is a simple lens for understanding the quality of visual content that maps neatly to both eye tracking and Rhino:

  • A – Attention: Does the visual hook the viewer immediately?
    Eye tracking metric: Time to First Fixation on the key element.
  • B – Branding: Does the shopper notice the brand’s distinctive assets early on?
    Eye tracking metric: Gaze percentage on logo/pack/brand assets.
  • C – Communication: Is the critical text glance readable?
    Eye tracking metric: Dwell time and gaze sequence on key on-image text.

Think of this as a hierarchy: if you don’t earn Attention, Branding and Communication never get a chance. If Branding is weak, performance is hard to attribute. And if Communication fails, the shopper never decodes what the product is, which version it is, or how much they are buying.

 

A – Attention: winning the biological battle in 0–2 seconds

Eye tracking consistently shows that people do not “read” ecommerce pages; they scan them. Shoppers skip product titles, skim or ignore bullets, and almost never glance at the long description. Attention is a biological reflex before it is a conscious decision.

DragonFly AI’s “design for the biological brain” is exactly right here: content has to win the biological battle for attention in the first 0–2 seconds. In practical terms, that means:

  • Shoppers treat search results like a fast-moving visual stream, not a catalogue.
  • The brain can handle roughly 3–5 focal points or hotspots at once; beyond that, cognitive load spikes and important information gets lost in the noise.
  • Cognitive science backs this up: working memory effectively holds about four chunks of information, with 4+1 as a practical upper ceiling. Every extra burst, badge, or micro-claim competes for those limited slots.

So yes, content needs to get noticed – but within the rules. If retailers didn’t enforce constraints and GS1 principles, the digital shelf would look like Lazada on a bad day. Every supplier shouting in neon, every pixel weaponised, and shopper eyeballs metaphorically bleeding from visual overload.
Eye tracking is the sanity check here. It shows which elements are actually pulling first fixation and early gaze, and which are just adding clutter. Tools like DragonFly, Vizit and Tobii’s own shopper research work together to make that “biological battle” visible and measurable.


B – Branding: more than “is there a logo?”

Once you’ve earned attention, the next job is that the content is recognisably yours at a glance.
Branding in this context is not “does a logo appear in the corner?” It’s the full set of distinctive brand assets and how consistently they appear:

  • Logos and wordmarks
  • Pack shots and product shape cues
  • Brand colours, typography, and graphic devices
  • Distinctive visual styles or layouts the brand owns linkedin+1

CreativeX has made a science out of measuring this at scale: detecting logos and pack shots, checking whether they meet minimum size/visibility thresholds, and ensuring they appear early and consistently across thousands of assets. That ensures the media money you spend is actually credited back to your brand, not just “some ad that looked nice”.

From a shopper’s perspective, good branding on a hero image means:

  • The brand is instantly recognisable in the scroll.
  • The pack or iconography reinforces what the product is without needing to read the title.
  • Colour and layout feel familiar, which lowers cognitive effort and builds trust.

From an attention point of view, eye tracking then answers: do people actually look at the brand assets when they scan, and how quickly? Strong branding plus strong attention equals memorability.

C – Communication: the missing link RHINO was built to solve

Attention and Branding are necessary but not sufficient. There’s a third step: Communication – the glance readability of the critical text on the image.
This is where RHINO is different and complementary to CreativeX (for branding) and DragonFly/Vizit/Tobii (for attention). RHINO measures something new: whether critical on-image text will actually be legible on real mobile screens, and does it at scale.

Eyetracking with Tobii has already established a simple but uncomfortable truth: shoppers are not reading product titles. Even when they fixate the title area briefly, they rarely parse it word by word. So the question becomes: if titles are effectively ignored, where does the product understanding come from?
Best practice from inclusive design and visual cognition says the maximum useful message load on any one image is around four key messages – 4+1 at the very most. If you have 10–14 micro-messages sprayed onto the pack, eye tracking shows gaze bouncing around, comprehension dropping, and purchase intent falling away.
That’s why RHINO focuses on glance readability: explicitly testing whether those critical few messages that should carry the load can actually be read at a glance on a small screen.

three. The 4Ws:

What hero images really need to communicate


Recognising that shoppers won’t read titles, 31 CPGs working with GS1 agreed that a mobile hero image must communicate four critical things – the “4Ws” – from the image itself:

  1. What Brand?
  2. What type of product or format? (e.g. capsules vs powder, bar vs liquid)
  3. What variant? (flavour, fragrance, benefit)
  4. What size or pack count?

If a shopper can’t answer those four questions in a couple of seconds from the hero image alone, the experience is broken. They either slow down (and maybe give up), mis-buy, or abandon the purchase entirely.

The practical problem: most hero images are designed on 24–27 inch screens by young, visually sharp designers and brand managers. Eyeballing an image full-screen in Figma or Photoshop and saying “looks fine to me” is a completely different reality from a 90 px thumbnail on a mid-range Android device in bright daylight. That gap is exactly where RHINO operates.

four. What RHINO actually tests… and how!


RHINO was built with Cambridge University’s Inclusive Design team and colour scientist Andrew Somers APCA algorithm to automate two previously manual checks:

  1. Contrast through APCA (Accessible Perceptual Contrast Algorithm)
    • RHINO detects text on the image using Azure AI + custom OCR and isolates it from the background.
    • It then applies APCA, the next-generation contrast model recommended for WCAG 3, to judge whether text meets modern contrast thresholds that better reflect how humans see on screens.
    • This moves beyond crude legacy contrast ratios and focuses on actual perceptual legibility given weight, size, and background.
  2. Clarity through the Cambridge Visual Clarity Algorithm
    • Co-developed with the University of Cambridge, this algorithm models how text of a certain height, stroke width, and style will perform at different digital sizes.
    • RHINO tests each design across multiple target contexts: mobile hero, web banners, secondary images, social templates – to ensure text remains legible in all the main formats where shoppers see it.

Under the hood, RHINO uses:

  • Automated text detection (including curved/angled text) via Azure AI computer vision.
  • A three-phase text isolation pipeline to separate text cleanly from complex backgrounds.
  • APCA-based contrast scoring for every text/background pair, with AA/AAA style thresholds adapted for real use.
  • Cambridge clarity scoring to determine pass/fail for each text element at defined physical sizes (e.g. 20 mm hero image).

The output is simple: for each image, you see which words pass, which fail, and where they become marginal – with visual overlays that make issues instantly obvious.

five. Why RHINO matters for real shoppers (and real businesses)


RHINO translates inclusive design theory into commercially relevant outcomes.

From the shopper’s point of view, RHINO helps to:

  • Reduce the number of times they mis-buy on size, format or variant because they couldn’t read the pack online.
  • Increase speed to “I get what this is” in the scroll, which makes mobile shopping feel less effortful and more trustworthy.
  • Make ecommerce experiences more inclusive for older or visually impaired shoppers without sacrificing brand distinctiveness.

 

From the brand’s point of view, RHINO delivers:

  • Proven sales uplift: mobile-ready hero images that pass both contrast and clarity tests have driven double-digit uplift versus plain pack shots in A/B tests.
  • Compliance and inclusion at scale: automatically meeting emerging WCAG-style expectations and internal inclusive design commitments, without 500 days of manual checking.
  • Speed and scale: bulk testing tens of thousands of images at low per-image costs instead of relying on “if I can read it, it must be fine”.

This is where RHINO complements tools like CreativeX, DragonFly Ai and Vizit AI rather than competing with them:

  • CreativeX ensures your brand assets show up correctly and consistently.
  • DragonFly / Tobii / Vizit Ai predictive attention tools ensure your visual hierarchy and attention hotspots work biologically.
  • RHINO ensures your critical text is actually legible in real digital contexts, so the 4Ws land in under two seconds.

Together, they give you a full-stack view of creative quality: Attention, Branding, Communication – measured, not guessed.  

six. Conclusion: designing for the real, scrolling shopper


The uncomfortable truth is that most digital visuals today are still being designed for the wrong person in the wrong context: a young designer on a big screen with perfect eyesight and plenty of time. The real shopper is older than we think, more distracted than we like, and scrolling far faster than our traditional creative reviews assume.

If your visuals can’t win attention in the first couple of seconds, if your brand isn’t clearly present when they do, and if your critical messages can’t be read at a glance on a 20 mm thumbnail, the rest of your marketing plan is built on sand.

Mobile-first today means vision-first: designing for real eyes, on real devices, in real-world lighting, with real cognitive load limits.

That’s why RHINO exists. It turns glance readability from a subjective argument into an objective, testable standard – so brand teams can ship fewer, better, clearer images that help shoppers decide quickly and confidently, instead of leaving them to squint, guess, and give up.