Qoloa is remembered for three things

The clean flippable card of real lines, the lime cat's ears and eyes, and the ultramarine stamp. Each shows up every day of use. None of them is on a language-app icon or in a language-app store deck (evidence on R3-References). Topic colour is personal rather than the brand logo: it tints the light behind your cards and remembers where you met each word. Lime stays as the brand accent.

1 · The clean card of real lines

Real lines on one calm card

  • Always a crisp white flashcard with a warm border and ledge on rice paper, never a noisy simulated screenshot.
  • Three difficulty bars at top-right, source attribution at bottom-left, and a 3D flip cue at bottom-right.
  • Words wear stage marks that recede as you learn them; Understand flips the card 3D to its translation, grammar note, and Ask Qoloa.
  • Lives on Read, at the end of Review, and on every share poster.
ObservedReal attributed lines on a flippable card appear in none of the 12 language-app store decks.
2 · The lime cat

Ears, eyes, and the colour you chose

  • Lime stays. It is the cat's colour and the accent of the app. The wordmark's full stop is stamp ink, not lime.
  • On the icon the tile is ink, so the cat does not sit on a green tile beside the owl.
  • The mark is the silhouette: two ears and two big eyes. It has to read at 60 pixels.
  • Only at moments that earn it: icon, Day kept, empty lists, Ask Qoloa, welcome back. Never on the front of a Read card, never to nag.
ObservedNo cat among 33 language icons. Cats are proven in character games.
3 · The stamp
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The only blue in the product

  • Ultramarine, used for stamps and nothing else.
  • It lands only as you leave a card you read without a tap. It never lands while you read.
  • It is the mark on every share image, and the shelf in Progress fills with stamped cards.
  • The full stop after the wordmark is a drop of the same ink, as if the name were stamped.
InferredNo language app has an earned reading stamp. Weight and ink follow real border stamps, below.
Where each mark sits

Fame comes from repetition, uniqueness from the category

The distinctive-asset grid asks two questions of every mark: how often people meet it, and how likely they are to name only you for it. Qoloa's marks are placed here by judgment from what the category references show.

  • Topic hues as the logo fall to the lower left. Nine hues vary per learner, so no single colour is met often, and a hue alone is not unique in a crowded category.
  • The streak flame is common to the whole category.
  • Lime on a lime tile is met often but sits beside the owl. The same lime on an ink tile moves right.
  • The Kalimba sound is the product sound. It is only met with sound on, so it sits lower on reach.
  • Ink buttons borrow Brilliant's pressable button. Good craft, not category ownership.
Met oftenMet rarely Only Qoloa Clean line card Lime cat, ink tile Ultramarine stamp Ink buttons Lime cat, lime tile Streak flame Topic hues as the logo Kalimba sound
The home screen test

Keep the cat's colour. Change what it sits on.

Each wall shows real store icons of 11 language apps with Qoloa dropped into slot 6 at phone home-screen scale. The lime cat on its own lime tile reads as the owl's cousin. On an ink tile it is the one dark icon, and the eyes still read cleanly. C and D keep two close hue alternatives in reserve: jade and mint.

Qoloa
A. Lime cat, lime tileOne slot from the owl: green creature, white eyes, green tile.
Qoloa
B. Lime cat, ink tile - chosenThe cat keeps its colour. The tile is the only dark one in the grid and the eyes still read.
Qoloa
C. Jade cat, rice tileIf Qoloa ever wants clear of every yellow-green: a blue-green cat that stays distinct.
Qoloa
D. Mint cat, ink tileNear the lime, cooler. Fluent Forever already uses a mint tile, so it is less open than C.
Hue alternatives, drawn by shifting the current art.
Lime, chosen
Citron
Mint
Jade
Teal
Citron goes mustard and dull. Teal drifts toward cyan. Jade and mint keep the cat fresh while lime on an ink tile claims its own dark square.
Where topic colour lives now

A fixed poster, tinted by what you read

Topic colour differs for every learner, so strangers cannot learn it as the brand mark. Instead, it powers the share poster: one template that belongs unmistakably to Qoloa - the clean white flashcard with a real attributed line, the ultramarine stamp, the cat peeking over the bottom edge, and the wordmark - tinted by the topic you read.

Read without help
Readwithout help
qoloa
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¡Paren el mundo, quiero bajarme!
Mafalda · Quino
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qoloa
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Chacun peut faire la cuisine.
Ratatouille · Brad Bird
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qoloa
Same template, three languages

The frame never changes: clean white flashcard, ultramarine stamp at the lower right, cat peeking over the bottom edge, wordmark. Only the line, its language, and the topic light behind it belong to the learner.

Why it can spread

A line from One Piece, Mafalda, or Stromae is already worth sharing. The stamp says you read it unaided, the same quiet proof that made Wordle's grid travel.

What carries the system
qoloaInk tile, lime cat, a wordmark whose full stop is a drop of stamp ink.
Understand Every action is ink with a pressable edge. Nothing is red, because red reads as wrong in a learning app.
Kalimba, on sol-do-mi, is the product sound. Hear the full set on the sound board.
Colour roles
Ink and rice. Structure, actions, type.
Lime. The cat, the accent, brand moments.
Ultramarine. Stamps and the wordmark's full stop. Nothing else.
Nine topic hues. Ambient room light, review card strips, and share posters. Yours, not the logo.
Leaf green. Growth only: Got it, stage ripening, the heatmap.
The stamp

Same two words. A pressed object instead of a flat badge.

A thin evenly inked frame looks like a UI chip. What stays from real border stamps is how they are made: heavy ink, a solid block, uneven pressure, and a little speckle. The words are knocked out of a solid band, so the stamp keeps its weight at 13px on a shelf card and at 40px on a share poster.

Readwithout helpBefore. Thin frame, one flat blue
Readwithout help
Chosen. Solid band, knocked-out words, pressed ink
DocumentedReal stamps are inked heavily, pressed unevenly and speckle where the pad ran dry; entry stamps use ultramarine, cobalt or crimson. ObservedOn this board a solid band holds up at small sizes where a thin frame turns to hairlines. Skipping dates and office lines keeps the mark instant. InferredA heavier stamp feels more earned when it lands at the end of a clean read.
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Double frame, flanked rules - hairlines at small sizes
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Pill - friendly, but reads as a button
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Solid band - chosen
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Ultramarine #2C3DAF - chosen
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Indigo #3F3BA8 - drifts purple
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Cobalt #1F4E9C - close to standard UI blue
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Deep blue #16457E - bank-card navy
qoloaPlain dot
qoloaRing dot - thin at small sizes
qoloaPressed squircle
qoloaInked drop - chosen
qoloaThe same, on rice

The full stop is a drop of the stamp ink: a lighter core and a darker edge, the way a pad leaves it.

What would reverse this. If ten people shown the icon wall with no names say the ink-tile cat still reminds them of the owl, move to C, the jade. If a cropped share card does not read as Qoloa without the wordmark, tighten the card-and-stamp proportion.
Current production choices. Lime cat on the ink tile is the production icon, buttons are ink with a warm ledge, Read uses one clean white flippable flashcard, and the product sound is Kalimba.