Philosophy
Monochrome first
Color is noise. The system lives in the gray spectrum — warm and cool tints create hierarchy without distraction.
Semantic color only
Color is reserved for meaning: errors, warnings, success, info. Never for decoration.
Hierarchy through luminance
Elements are differentiated by brightness, not hue. Important things are brighter, subordinate things fade.
Desaturated calm
Even diagnostics use muted tones. No screaming reds — the interface stays calm under pressure.
Colors
Surface
bg
surface
surface-raised
border
border-subtle
Text
text
text-secondary
text-muted
text-faint
Semantic
accent
error
warning
success
info
Syntax
keyword
string
function
constant
comment
parameter
Typography
xs
The quick brown fox jumps over the lazy dog
sm
The quick brown fox jumps over the lazy dog
base
The quick brown fox jumps over the lazy dog
lg
The quick brown fox jumps over the lazy dog
xl
The quick brown fox jumps
2xl
The quick brown fox
3xl
Design System
Spacing
4
8
12
16
24
32
48
64
96
Components
Buttons
Inputs
Badges
Default
Error
Warning
Success
Info
Cards
Surface card
A basic card using the surface background with subtle border.
Raised card
Elevated variant with a slightly lighter surface.
Interactive card
Hover to see the subtle transition effect.
Code
const theme = 'min-mono';
function getToken(name) {
// Resolve a design token at runtime
return getComputedStyle(document.documentElement)
.getPropertyValue(`--${name}`);
}Alerts
Info: Monochrome is the default. Color is opt-in.
Success: Token applied successfully.
Warning: Saturated colors break the system.
Error: Pure #ff0000 is never acceptable.