learn-ai-design-with-phoebe / Leader session 2 of 6
Learn AI Design with Phoebe · Leader track · Session 2 of 6

Taste is the moat

"Taste" is the word leaders reach for when they cannot say what is wrong. That is a problem, because a word nobody can define cannot be a standard, and without a standard your review is just your mood with a job title attached. Tonight we cut taste in half. One half is arithmetic - contrast ratios, one type ratio, one spacing unit, one loudest thing, how many hues are fighting. Delegate that to a stated standard and it stops eating your review. The other half is concept, tension, emphasis and fit, and that half is the only thing your competitors cannot generate.

🟢 Leader track Design · brand · creative leads The critique standard 45 min
0-3 · Recap of a1 3-20 · The two halves of taste 20-34 · Homogenisation as a risk 34-45 · The review ritual
Part 1 · the split that makes taste manageable

Half of taste is arithmetic. Delegate that half 14 min live

Watch what happens in a normal design review. Someone says the work feels cheap. Someone else says it feels busy. Forty minutes later there is a list of pixel nudges and no decision, and the actual problem - that the screen has no idea in it - was never named. The fix is not a better vocabulary. The fix is noticing that the two things being discussed are not the same kind of thing at all.

The measurable half can be checked by anyone in about ninety seconds, and a machine can check most of it without a human at all. Contrast is a formal standard: WCAG 2.2 success criterion 1.4.3 requires at least 4.5:1 for normal text and 3:1 for large text, where large means 18pt (24px), or 14pt (18.66px) when bold - size and weight decide the threshold, not whether you called it a heading. One type ratio generating every size. One spacing unit that every gap is a multiple of. One loudest element, because two means neither wins. And a count of hue families on screen, of which ideally exactly one carries meaning.

The judgement half is not softer, it is just not arithmetic. Is there a concept, or only an arrangement? Is there tension - one deliberate break that earns attention rather than decorating? Does the emphasis sit on the user's actual task, or on whatever the designer enjoyed making? And does it fit this brand, at this moment, for this audience - not any brand, generically? That is the half a generator has nothing to offer on, and therefore the half your hour belongs to.

DELEGATE · a stated standard, 90 seconds KEEP · the hour nothing can automate Contrast WCAG 2.2 SC 1.4.3 · 4.5:1 normal, 3:1 large Type scale one ratio generates every size on the page Spacing every gap a multiple of one unit Hierarchy exactly one loudest element, on purpose Hue families count them · one should carry meaning Concept is there an idea, or only an arrangement? Tension one deliberate break that earns a look Emphasis is it on the user's task or the designer's? Fit this brand, this moment, not any brand A standard makes the left column somebody else's ninety seconds instead of your hour. The designer lab scores the left half live, 17 to 100. A 100 says nothing about the right half.
🔍 Click to zoom - which half of taste you delegate, and which half is the moat
LiveThe leader move: publish the standard, reclaim the hour5 min▶

You are not trying to make taste objective. You are trying to stop spending your scarcest resource - senior review attention - on the part of taste that never needed a senior person.

  • Write the five checks down once. Contrast floor, the type ratio, the spacing unit, one loudest element, the hue-family count. Half a page, not a manifesto.
  • Make it a pre-condition, not a review item. Work arrives having passed it. A review that spends its first twenty minutes on contrast ratios is a review that will never reach the concept.
  • Say which are standards and which are conventions. The contrast thresholds are WCAG 2.2. One type ratio, one spacing unit and "one loudest thing" are conventions - widely shared, genuinely useful, not law. Pretending a convention is a spec is how a standard loses its authority the first time somebody checks.
  • Then defend the hour. The time you free up goes to concept, emphasis, states and fit. If it quietly refills with pixel nudges, you have automated nothing.

The designer track builds exactly this instrument in b5, and its lab measures the left column live on a real Cadence screen. The climb runs 17 to 32 to 46 to 66 to 86 to 100 as hierarchy, type scale, spacing, contrast and one accent come on. You do not need to run it to use it. What you need is the last sentence of it, which is the point of this whole session.

Self-studyWhat a clean score does not prove4 min read▶

This is the caveat that keeps the standard honest, and the sentence to repeat every time somebody waves a green checklist at you.

A 100 means nothing is measurably broken. It does not mean the work is any good. A perfectly scored screen can still have no idea in it, put its emphasis on the wrong thing, feel like four competitors' screens, and be completely wrong for the moment your brand is in. Measurably clean and forgettable is a very real category, and AI-assisted work lands in it more often than not, because a generator optimises for plausible.

  • Treat the score as a floor, never a ceiling. It is the price of entry to the conversation you actually care about.
  • Watch for score gaming. Once people know the five checks, some will hit them by removing everything interesting. Flat, safe and compliant is a failure mode with a green tick on it.
  • Never let the score end a debate about concept. "It scores 100" is not an answer to "what is the idea".
  • Do keep the accessibility half non-negotiable. Contrast is not a matter of taste at all - it is a criterion you can be held to, and the one item on the list where "the designer preferred it" is not a defence.
Part 2 · the category risk

Everyone briefing the same tool ships the same screen 12 min live

Here is the mechanism, and it is worth stating plainly because it is structural rather than a matter of tool quality. A generative model returns what is likely given the prompt. Likely means close to the centre of everything it has seen. A brand exists to be recognisably not the centre. So the default output of any generator, briefed lazily, is pulling in the exact opposite direction from the thing you were hired to protect. Better models make this prettier. They do not make it less true.

Then add the part that makes it a category risk rather than a personal one: you are not the only person with the tool. If you and three competitors brief the same tool, in the same lazy way, for the same kind of screen, you will get the same kind of screen. Nobody did anything wrong. Nobody copied anyone. You all just asked for the average of your category and received it.

What this looks like in the wild, described as a pattern you can go and observe rather than a statistic I am going to invent for you:

Two things I will not do here: quote a study I have not verified, or give you a percentage. The mechanism is honest and the pattern is observable in your own category this afternoon. That is a stronger argument than a borrowed number, and it survives being challenged.

LiveThe defence is direction, not abstinence4 min▶

Banning the tool is not a strategy - your team will use it anyway, and worse, without a standard. The defence is to arrive with what the model does not have.

  • A brief made of constraints, not adjectives. "Clean, modern, premium" cannot be wrong, which is why it cannot help. One primary action, one type scale, one spacing unit, one accent, a contrast floor - all checkable.
  • A position in the reference material. A moodboard that says what you are not doing is worth ten that say "inspiration". This is b3's whole subject in the designer track.
  • A brand that is specified, not described. Vague brand documents produce generic output at machine speed. Specificity is now an operational asset, not a nice-to-have.
  • One deliberate break. The thing a model will never volunteer, because it is by construction unlikely. Your team has to choose it, and you have to protect it in review when someone calls it risky.

Note what all four have in common: they are upstream of generation. By the time you are looking at output, the distinctiveness decision has already been made or already been skipped.

Self-studyA ten-minute test you can run on your own category3 min read▶

Do not take my word for the drift. Measure it in your own market, and bring the result to your next brand conversation.

Screenshot the same screen from five competitors - onboarding, pricing, or your equivalent of Cadence's shared summary.

Crop out every logo and wordmark. Nothing else.

Show them to five colleagues and ask them to attribute each one. Write down the hit rate.

Include your own screen in the set, unlabelled. This is the part that stings and the part that funds the work.

If nobody can pick you out of your own category, you do not have a design-quality problem. You have a distinctiveness problem, and no amount of polish on the measurable five will fix it. That is the argument for investing in the judgement half, and it lands with executives in a way that a contrast ratio never will.

Part 3 · what you install on Monday

The review ritual a leader installs cards · 10 min live

A standard that lives in a document changes nothing. A standard that changes the shape of your review changes everything. Four habits, in order, and the order is the point.

LiveHabit 1 · Score the measurable five first, in about 90 seconds3 min▶

Open the review by reading the five checks out loud against the work. Worst contrast ratio and whether it clears 4.5:1, or 3:1 if the text is genuinely large. Number of distinct font sizes and whether they come from one ratio. Whether every gap is a multiple of the unit. How many elements are competing for first read. How many hue families are on screen and which one means something.

It takes a minute and a half and it does two things. It removes the entire category of argument that was never an argument, and it demonstrates - to the designer and to every stakeholder in the room - that "I don't like it" is not how this review works. Then you close that part and do not reopen it.

LiveHabit 2 · Spend the rest of the hour on concept, emphasis, states and fit3 min▶

Four questions, asked in this order, every time:

  • What is the idea? Not what is on the screen. What is the one thought a user should leave with. If the answer takes three sentences, there is no idea yet.
  • Is the emphasis on the user's task? On Cadence's shared summary, the task is deciding whether this summary is safe to send. If the loudest thing on screen is a decorative header, the emphasis is wrong regardless of how well it scores.
  • Where are the states? Empty, loading, error, one item, four hundred items, the summary that failed to generate, the meeting the viewer was not in. Generated work almost never brings these, and they are where credibility lives.
  • Is this ours? Cover the logo. Would anyone know? If not, say so early, because it is a brief problem and briefs are cheap to change.
LiveHabits 3 and 4 · Ask for the brief, and praise the judgement4 min▶

Ask for the brief before critiquing the person. When AI output is bad, it is usually a vague constraint wearing a craft costume. Reading the actual prompt or brief first turns "this isn't working" into "this brief never said which action was primary" - a fixable, unembarrassing, five-minute problem. It also stops you critiquing a designer for faithfully executing a bad instruction, quite possibly yours.

Require the states before approving another visual option. This single rule fixes more AI-era design debt than any other. Options are cheap now, states are not, and a team that is rewarded for options will bring you options forever.

Praise the judgement, not the render. This is the one that quietly decides your culture. If you say "wow, that looks great, and so fast", you have taught the room that volume and finish are what earns approval - and a generator will always beat a human on both. Say instead: "good call cutting the second heading", "you noticed the error state nobody asked for", "this is the only version that could only be ours". You get more of what you name.

The difference between the two kinds of review, in the words people actually use:

Preference review - unfalsifiable, generates rework

"Hmm. It feels cluttered and a bit cheap. Make the header stronger, and can we try it with a bit more energy? Also not sure about the blue. Let's see a few more options."

Evidence review - checkable, generates decisions

"Two elements are competing for first read: the page header and the Share button. Pick one. The AI-generated label is 3.1:1 against its background and it is 14px regular, so it needs 4.5:1. There are four hue families on screen and only one of them carries meaning - the other three are decoration, so cut them. Then, the real question: what is the idea here, and where are the empty and error states?"

Self-studyTranslating each preference note into a checkable one4 min read▶

You will not stop having instincts, and you should not want to. The skill is converting the instinct into something a designer can act on without guessing. Keep this table next to you for a fortnight and it becomes automatic.

What you nearly saidWhat is usually underneath it
"It feels cluttered"Too many hue families, or gaps that are not multiples of one unit, so nothing groups. Count both before you speak.
"It feels cheap"Usually spacing and type: many arbitrary sizes, uneven rhythm, text crowding its container. Occasionally a genuine contrast defect.
"Make the header stronger"Two elements are competing for first read. Strengthening one of them is a fix; strengthening both is the disease.
"It needs more energy"There is no concept and no tension. This is the judgement half, so say the real thing: what is the idea?
"Not sure about the blue"Either the hue carries no meaning, or it fails contrast where it is used as text. Both are checkable in seconds.
"Let's see a few more options"Very often: you cannot articulate the decision criteria yet. Options are now cheap, so this reflex is expensive. Write the criteria instead.

The last row is the one to watch in yourself. In a world where forty options cost nothing, asking for more options is the easiest way to look engaged while postponing the only thing that was ever hard.

THE REVIEW BUDGET · get the order right and the hour survives 90 SEC the five THE REST OF THE HOUR concept · emphasis · states · fit to this brand and this moment WHAT GENERATED WORK MOST OFTEN FAILS ON · none of it is a colour problem No concept an arrangement, not an idea Two first reads header and button both shouting No states one happy path, no empty or error Brand-adjacent near the brand, never specific to it The 90 seconds buys you the hour. Skip it and the hour goes on the wrong layer. Every failure above passes a contrast check. That is exactly why you review both halves.
🔍 Click to zoom - how the review hour splits, and what generated work reliably gets wrong
Real world

The ninety seconds is also your best tool against "just make it pop". When an executive gives you a preference note, do not argue about taste - score the five checks in front of them and read the rows out. Either something is genuinely broken, in which case you now have a specific fix and a grateful stakeholder, or nothing is, in which case the conversation moves to concept and emphasis where it always belonged. Keep the honest caveat in your pocket though: passing all five means the work is not broken. It does not mean it is good, and if you ever let a clean score end a conversation about the idea, you have handed your moat to the tool.

Homework

Before session a3 ◐ 45-60 min total

Source material

Official sources covered

This session leans on the one part of design quality that has a formal, citable standard, and is deliberately careful about the part that does not. Where a claim is a convention it is labelled a convention; where a pattern is observable but unquantified, we describe the mechanism and hand you a test rather than a borrowed statistic. This page covers:

✓WCAG 2.2 SC 1.4.3 Contrast (Minimum) - 4.5:1 normal, 3:1 large, with the 18pt/24px and 14pt/18.66px bold definitionPart 1 and Part 3 · full criteria set by number in b5
✓The measurable / judgement split as a review standard a leader can publishPart 1 · turned into a working instrument in b5
✓The homogenisation mechanism - generators return the likely, brands exist to be unlikelyPart 2 · mechanism and observable pattern only, no invented figures
◐Type scale and spacing conventions, and "one loudest thing"Named as conventions, not specs · tokenised in b6
◐The critique lab's canon climb - 17 to 32 to 46 to 66 to 86 to 100, and the 19-point colour penaltyReferenced as a leadership talking point · the lab itself lives in b1 and b5
Check yourself

Three questions before you go 🎯 ◐ 90 seconds

1 · WCAG 2.2 SC 1.4.3 allows 3:1 instead of 4.5:1 for large text. What counts as large?

Rendered size and weight decide the threshold, not the role or the tag. A 16px bold heading is still normal text and still owes you 4.5:1 - which is why "but it's a heading" is not a defence in a review.

2 · A screen passes all five measurable checks and scores 100. What has that proved?

A clean score is a floor, not a ceiling. Measurably clean and completely forgettable is a real and common category, and it is where AI-assisted work lands by default because a generator optimises for plausible. Never let a score end a conversation about the idea.

3 · Why does heavy reliance on generators tend to make a whole category look alike?

It is structural, not a bug and not plagiarism. Likely means near the centre of everything the model has seen, and a brand exists to be recognisably away from that centre. Better models make the output prettier without changing the direction it pulls.

Leader session 2 cheat sheet · pin this

The splitHalf of taste is arithmetic and delegatable. Half is concept, tension, emphasis and fit, and that half is the moat.
The measurable fiveContrast · one type ratio · one spacing unit · one loudest element · hue-family count with one carrying meaning.
The contrast numbersWCAG 2.2 SC 1.4.3: 4.5:1 normal text, 3:1 large. Large = 18pt/24px, or 14pt/18.66px bold. Size and weight decide, not role.
Standards vs conventionsContrast is a standard you can be held to. One ratio, one unit and one loudest thing are conventions. Say which is which or lose the room.
What 100 does not meanNothing measurably broken. Not an idea, not distinctive, not right for this moment. Floor, never ceiling.
HomogenisationGenerators return the likely; brands exist to be unlikely. Same tool, same lazy brief, same screen as your competitors. Mechanism, not conspiracy.
The ritual90 seconds on the five, then the hour on concept, emphasis, states and fit. Ask for the brief before critiquing the person.
The culture leverPraise the judgement, not the render. Require states before more options. Reward volume and a generator will always outbid your team.