Sketchy, imperfect human marks: wobbly hand-drawn borders, crayon-primary accents on cream, handwritten Caveat and Patrick Hand type, arrows and marginalia doodled around content. The interface looks like a clever friend explained it on paper.
Primary actionRough, wobbly stroke rendering on every border and underline — rough.js-style paths with visible overshoot at corners — plus hand-drawn arrows and circled annotations pointing at whatever matters most.