Jeroen Janssen
01/The system Strak · v2.1 · August 2026

Paper, ink and one signal

One system carries the site, every article, every deck and every card. The red square marks the person and closes the claim; everything else is line work.

02/Colour ± 72 paper · 20 ink · 8 red
Paper · #F2F1EB · base
Ink · #111110 · text, dark sections
Red · #E32119 · the signal
White · #FFFFFF · cards on paper
Ink-2 · #4A4842 · body
Grey · #8A877D · mono labels
Line · #DCDAD1 · hairlines
Red-dark · #C41B14 · hover
03/Logo & type Inter Tight · Inter · IBM Plex Mono
Logo · wordmark + the mark

Jeroen Janssen

The name in Inter Tight 700, closed by the red square. The square is a full stop: it ends claims, it never decorates. Avatar mark for small circles: J with the square.

Type · three voices

Display in sentence case, one red word

Inter Tight 700 for display. Inter for body. IBM Plex Mono in caps for every label, number and caption. No italics, no serif, no second display face.

04/Elements & icons 1.5px line · one red square each
Elements

01  A  03   [ Discuss a brief ]

Square chips for numbering and status. Bracket links instead of buttons. Hairlines instead of cards. Radius zero, no shadows. Every photo carries white camera-frame corners and a mono caption.

Icon grammar

Technical line work, sharp corners, and exactly one red element per icon: the person, or the signal.

05/Use it One source of truth

The full manual, thirty pages

[Download the manual]

Foundation, architecture, logo, the square, colour, type, grid, web components, the full icon set, motion, photography, voice, XD, XQ, tenant., applications and file index.