Ticktick UI Skills

Opinionated constraints for building Ticktick-style interfaces with AI agents.

When to Apply

Reference these guidelines when:

• Building light-mode interfaces

• Creating Ticktick-inspired design systems

• Implementing UIs with Inter font and 4px grid

Colors

• SHOULD use light backgrounds for primary surfaces

• MUST use #FEFEFE as page background (surface-base )

• MUST use #6E85D9 for primary actions and focus states (accent )

• SHOULD reduce color palette (currently 18 colors detected)

• MUST maintain text contrast ratio of at least 4.5:1 for accessibility

Semantic Tokens

Token HEX RGB Usage

surface-base

#FEFEFE rgb(254,254,254) Page background

surface-raised

#D8EDF7 rgb(216,237,247) Cards, modals, raised surfaces

surface-overlay

#3656F8 rgb(54,86,248) Overlays, tooltips, dropdowns

text-primary

#CACACA rgb(202,202,202) Headings, body text

text-secondary

#8D8D8D rgb(141,141,141) Secondary, muted text

text-tertiary

#B7C0DE rgb(183,192,222) Additional text

border-default

#9AAFD4 rgb(154,175,212) Subtle borders, dividers

accent

#6E85D9 rgb(110,133,217) Primary actions, links, focus

Typography

• MUST use Inter as primary font family

• SHOULD use single font family for consistency

• MUST use 51px / 700 for primary headings

• MUST use 13px / 400 for body text

• SHOULD reduce font weights (currently 4 detected)

• MUST use text-balance for headings and text-pretty for body text

• SHOULD use tabular-nums for numeric data

• NEVER modify letter-spacing unless explicitly requested

Text Styles

Style Font Size Weight Color Count

heading-1

Inter 51px 700 #282B2C 1

text-20px

Inter 20px 400 #7D8CD9 1

text-19px

Inter 19px 500 #7C7C7C 1

text-19px

Inter 19px 400 #525F66 1

text-18px

Inter 18px 500 #797979 1

text-16px

Inter 16px 400 #A0A0A0 1

text-16px

Inter 16px 400 #999999 1

text-16px

Inter 16px 400 #6E85D9 1

text-15px

Inter 15px 400 #9A9A9A 1

text-15px

Inter 15px 400 #9C9C9C 1

Typography Reference

Font Families:

• Inter (used 62x)

Font Sizes: 9px, 10px, 11px, 12px, 13px, 14px, 15px, 16px, 18px, 19px, 20px, 51px

Spacing

• MUST use 4px grid for spacing

• SHOULD use spacing from scale: 2px, 4px, 5px, 6px, 9px, 14px, 15px, 20px

• SHOULD use 5px as default gap between elements

• NEVER use arbitrary spacing values (use design scale)

• SHOULD maintain consistent padding within containers

Borders

• MUST use border-radius from scale: 3px, 16px, 22px, 23px, 25px

• SHOULD use 22px+ radius for pill-shaped elements

• MUST use 1px border width consistently

• SHOULD use 3px as default border-radius

• NEVER use arbitrary border-radius values (use design scale)

• SHOULD use subtle borders (1px) for element separation

Border Radius Reference

Scale: 3px, 16px, 22px, 23px, 25px

Layout

• MUST design for 1920px base viewport width

• SHOULD use consistent element widths: 16px, 15px, 14px, 13px, 8px

• SHOULD maintain text-heavy layout with clear hierarchy

• NEVER use h-screen , use h-dvh for full viewport height

• MUST respect safe-area-inset for fixed elements

• SHOULD use size-* for square elements instead of w-*

• h-*

Detected Layout Patterns

• Main Content: width: 1920px, height: 1080px

• Main Content: width: 1920px, height: 1038px

• Main Content: width: 1001px, height: 583px

• Header: height: 76px

Components

Buttons

Variant Background Text Border Height Radius

Ghost transparent #C3C2D0 none

Interactive States

Focus

• MUST use 2px outline with accent color (#6E85D9 )

• MUST use 2px outline-offset

• NEVER remove focus indicators

Hover

• Buttons (primary): lighten background by 10%

• Buttons (secondary): use #D8EDF7 background

• List items: use #D8EDF7 background

Disabled

• MUST use opacity: 0.5

• MUST use cursor: not-allowed

Interaction

• MUST use an AlertDialog for destructive or irreversible actions

• SHOULD use structural skeletons for loading states

• MUST show errors next to where the action happens

• NEVER block paste in input or textarea elements

• MUST add an aria-label to icon-only buttons

Animation

• NEVER add animation unless it is explicitly requested

• MUST animate only compositor props (transform , opacity )

• NEVER animate layout properties (width , height , top , left , margin , padding )

• SHOULD use ease-out on entrance animations

• NEVER exceed 200ms for interaction feedback

• SHOULD respect prefers-reduced-motion

Performance

• NEVER animate large blur() or backdrop-filter surfaces

• NEVER apply will-change outside an active animation

• NEVER use useEffect for anything that can be expressed as render logic