Theming DevToolset

Update existing theme

Update variables in src/app/globals.css

List of variables

Here's the list of variables available for customization:

Default background color of <body />...etc

--background: 0 0% 100%;
--foreground: 222.2 47.4% 11.2%;

Muted backgrounds such as <TabsList />, <Skeleton /> and <Switch />

--muted: 210 40% 96.1%;
--muted-foreground: 215.4 16.3% 46.9%;

Background color for <Card />

--card: 0 0% 100%;
--card-foreground: 222.2 47.4% 11.2%;

Background color for popovers such as <DropdownMenu />, <HoverCard />, <Popover />

--popover: 0 0% 100%;
--popover-foreground: 222.2 47.4% 11.2%;

Default border color

--border: 214.3 31.8% 91.4%;

Border color for inputs such as <Input />, <Select />, <Textarea />

--input: 214.3 31.8% 91.4%;

Primary colors for <Button />

--primary: 222.2 47.4% 11.2%;
--primary-foreground: 210 40% 98%;

Secondary colors for <Button />

--secondary: 210 40% 96.1%;
--secondary-foreground: 222.2 47.4% 11.2%;

Used for accents such as hover effects on <DropdownMenuItem>, <SelectItem>...etc

--accent: 210 40% 96.1%;
--accent-foreground: 222.2 47.4% 11.2%;

Used for destructive actions such as <Button variant="destructive">

--destructive: 0 100% 50%;
--destructive-foreground: 210 40% 98%;

Used for focus ring

--ring: 215 20.2% 65.1%;

Border radius for card, input and buttons

--radius: 0.5rem;

Add new theme

To add new colors, you need to add them to your CSS file and to your tailwind.config.js file.

Define new theme variables in src/app/globals.css

:root {
  --warning: 38 92% 50%;
  --warning-foreground: 48 96% 89%;
}
 
.dark {
  --warning: 48 96% 89%;
  --warning-foreground: 38 92% 50%;
}

Add new theme in tailwind.config.js

module.exports = {
  theme: {
    extend: {
      colors: {
        warning: "hsl(var(--warning))",
        "warning-foreground": "hsl(var(--warning-foreground))",
      },
    },
  },
}

You can now use the warning utility class in your components.

<div className="bg-warning text-warning-foreground" />