Creating Themes - My EverShop App

Themes control the visual appearance and user interface of your EverShop store. Unlike extensions (which handle logic), themes focus on the presentation layer using React components and Tailwind CSS.

What is a Theme?

A theme is a collection of React components that define how your store looks and feels. Themes:

Override default UI components with custom designs
Use Tailwind CSS for styling
Support TypeScript for type-safe development
Are modular - only override components you need
Work with areas - inject components into predefined page areas

Directory Structure

A typical theme follows this structure:

themes/[theme-name]/
├── src/
│   └── pages/
│       ├── all/            # Components for all pages
│       ├── frontStore/     # Front-end specific components
│       ├── admin/          # Admin panel components
│       ├── homepage/       # Homepage components
│       ├── account/        # Account pages
│       └── productView/    # Product detail page
├── dist/                   # Compiled output (auto-generated)
├── package.json
└── tsconfig.json

Creating Your First Theme

Create the Theme Directory

Create a new directory in the themes folder:

mkdir -p themes/my-theme/src/pages
cd themes/my-theme

Initialize package.json

Create a package.json file:

{
  "name": "my-theme",
  "version": "1.0.0",
  "private": true,
  "main": "src/index.ts",
  "scripts": {
    "build": "evershop build:theme"
  },
  "dependencies": {},
  "devDependencies": {
    "@types/react": "^19.0.0"
  }
}

Configure TypeScript

Create a tsconfig.json file (same as extensions):

{
  "compilerOptions": {
    "module": "NodeNext",
    "target": "ES2018",
    "lib": ["dom", "dom.iterable", "esnext"],
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,
    "skipLibCheck": true,
    "declaration": true,
    "sourceMap": true,
    "allowJs": true,
    "checkJs": false,
    "jsx": "react",
    "outDir": "./dist",
    "resolveJsonModule": true,
    "allowSyntheticDefaultImports": true,
    "allowArbitraryExtensions": true,
    "strictNullChecks": true,
    "isolatedModules": false,
    "baseUrl": ".",
    "rootDir": "./src"
  },
  "include": ["src"]
}

Set your theme in config/default.json:

{
  "system": {
    "theme": "my-theme"
  }
}

Only one theme can be active at a time. Changing the theme requires running npm run build.

Build the Theme

Run the build command:

npm run build

Creating Theme Components

Theme components are React components that render on specific pages. Each component must export:

Default export - The React component
layout export - Defines where and when the component renders
query export (optional) - GraphQL query for data fetching

Component Structure

Here’s a real example from the anasuplements theme:

src/pages/all/Header.tsx

import React from 'react';

type HeaderProps = {
  storeName?: string;
  categories?: {
    name: string;
    url: string;
  }[];
};

export default function Header({ 
  storeName = "My Store", 
  categories = [] 
}: HeaderProps) {
  return (
    <header className="bg-[#F8FAF9] border-b border-[#E8F5E9]">
      <div className="container mx-auto px-4 py-4">
        <div className="flex items-center justify-between">
          <a href="/" className="text-2xl font-bold text-[#2D5A3D]">
            {storeName}
          </a>
          
          <nav className="hidden md:flex space-x-6">
            {categories.map((category, index) => (
              <a 
                key={index} 
                href={category.url}
                className="text-[#4A5568] hover:text-[#2D5A3D] transition-colors"
              >
                {category.name}
              </a>
            ))}
          </nav>

          <div className="flex items-center space-x-4">
            <a href="/cart" className="text-[#2D5A3D] hover:text-[#1E3D2A]">
              <svg xmlns="http://www.w3.org/2000/svg" className="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke="currentColor">
                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M3 3h2l.4 2M7 13h10l4-8H5.4M7 13L5.4 5M7 13l-2.293 2.293c-.63.63-.184 1.707.707 1.707H17m0 0a2 2 0 100 4 2 2 0 000-4zm-8 2a2 2 0 11-4 0 2 2 0 014 0z" />
              </svg>
            </a>
            <a href="/account" className="text-[#2D5A3D] hover:text-[#1E3D2A]">
              <svg xmlns="http://www.w3.org/2000/svg" className="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke="currentColor">
                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M16 7a4 4 0 11-8 0 4 4 0 018 0zM12 14a7 7 0 00-7 7h14a7 7 0 00-7-7z" />
              </svg>
            </a>
          </div>
        </div>
      </div>
    </header>
  );
}

export const layout = {
  areaId: 'header',
  sortOrder: 1
};

Layout Configuration

The layout export defines where your component appears:

export const layout = {
  areaId: 'header',      // Where to render (see Areas below)
  sortOrder: 1           // Order within the area (lower = earlier)
};

Page Areas

EverShop uses a component area system. Common areas include:

Area ID	Description
`header`	Page header section
`content`	Main content area
`footer`	Page footer section
`sidebar`	Sidebar area
`productPageMiddleRight`	Product page right column
`homepage`	Homepage specific area

Use lower sortOrder values to render components earlier in the area.

Directory Organization

Theme components are organized by page type:

Global Components (all/)

Components in src/pages/all/ appear on every page:

src/pages/all/
├── Header.tsx     # Site header
├── Footer.tsx     # Site footer
└── Navigation.tsx # Global navigation

Area-Specific Components

Components for specific areas (frontStore, admin):

src/pages/frontStore/
└── productView/
    └── ProductInfo.tsx

src/pages/admin/
└── dashboard/
    └── Stats.tsx

Page-Specific Components

Components for specific pages:

src/pages/homepage/
├── Hero.tsx
├── Features.tsx
└── FeaturedProducts.tsx

src/pages/account/
├── Login.tsx
├── Register.tsx
└── Dashboard.tsx

Working with Data

Use the query export to fetch data with GraphQL:

src/pages/frontStore/productView/SupplementInfo.tsx

import React from 'react';

type SupplementInfoProps = {
  product: {
    productId: string;
    name: string;
    description?: string;
    extension?: {
      supplement?: {
        ingredients?: string;
        benefits?: string[];
        dosage?: string;
      };
    };
  };
};

export default function SupplementInfo({ product }: SupplementInfoProps) {
  const supplementData = product?.extension?.supplement;

  if (!supplementData) {
    return null;
  }

  return (
    <div className="bg-[#F8FAF9] border border-[#E8F5E9] rounded-lg p-6 mt-6">
      <h3 className="text-xl font-bold text-[#2D5A3D] mb-4">
        Información del Suplemento
      </h3>
      
      {supplementData.ingredients && (
        <div>
          <h4 className="font-semibold text-[#2D5A3D] mb-2">Ingredientes</h4>
          <p className="text-[#4A5568] text-sm">{supplementData.ingredients}</p>
        </div>
      )}
      
      {supplementData.benefits && (
        <div className="mt-4">
          <h4 className="font-semibold text-[#2D5A3D] mb-2">Beneficios</h4>
          <ul className="list-disc list-inside text-[#4A5568] text-sm space-y-1">
            {supplementData.benefits.map((benefit: string, index: number) => (
              <li key={index}>{benefit}</li>
            ))}
          </ul>
        </div>
      )}
    </div>
  );
}

export const layout = {
  areaId: 'productPageMiddleRight',
  sortOrder: 10
};

export const query = `
  query Query {
    product(id: getContextValue("productId")) {
      productId
      name
      description
      extension {
        supplement {
          ingredients
          benefits
          dosage
        }
      }
    }
  }
`;

The query export uses GraphQL to fetch data. Props are automatically passed to your component.

Styling with Tailwind CSS

All themes use Tailwind CSS for styling:

<div className="bg-white rounded-lg shadow-md p-6 hover:shadow-lg transition-shadow">
  <h3 className="font-semibold mb-3 text-gray-800">Title</h3>
  <p className="text-gray-600 leading-relaxed">Content</p>
</div>

Custom Colors

Use custom color values with bracket notation:

<header className="bg-[#F8FAF9] border-b border-[#E8F5E9]">
  <h1 className="text-[#2D5A3D]">Title</h1>
</header>

Responsive Design

Use responsive modifiers:

<div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
  {/* Content */}
</div>

Real-World Example: Ana’s Supplements Theme

The anasuplements theme demonstrates a complete theme implementation:

themes/anasuplements/
├── src/
│   └── pages/
│       ├── all/
│       │   ├── Header.tsx
│       │   └── Footer.tsx
│       ├── homepage/
│       │   ├── Hero.tsx
│       │   ├── Features.tsx
│       │   └── FeaturedProducts.tsx
│       └── account/
│           ├── Login.tsx
│           ├── Register.tsx
│           └── Dashboard.tsx
├── package.json
└── tsconfig.json

Best Practices

Component Reusability: Create small, reusable components that can be composed together.

Use TypeScript - Define proper types for props
Responsive First - Design for mobile, then scale up
Accessibility - Use semantic HTML and ARIA labels
Performance - Optimize images and minimize bundle size
Consistent Styling - Use a consistent color palette and spacing

Troubleshooting

Component Not Rendering

Verify the layout export is present
Check that areaId matches a valid area
Ensure the component is in the correct directory
Run npm run build to recompile

Styles Not Applying

Verify Tailwind CSS classes are correct
Check for typos in class names
Ensure custom colors use bracket notation: bg-[#FFFFFF]

Data Not Loading

Verify the GraphQL query is valid
Check that field names match the schema
Test the query in GraphQL playground

Next Steps

Page Components

Deep dive into page component architecture

Tailwind Design System

Learn about the Tailwind design system

​What is a Theme?

​Directory Structure

​Creating Your First Theme

​Creating Theme Components

​Component Structure

​Layout Configuration

​Page Areas

​Directory Organization

​Global Components (all/)

​Area-Specific Components

​Page-Specific Components

​Working with Data

​Styling with Tailwind CSS

​Custom Colors

​Responsive Design

​Real-World Example: Ana’s Supplements Theme

​Best Practices

​Troubleshooting

​Component Not Rendering

​Styles Not Applying

​Data Not Loading

​Next Steps

Page Components

Tailwind Design System

What is a Theme?

Directory Structure

Creating Your First Theme

Creating Theme Components

Component Structure

Layout Configuration

Page Areas

Directory Organization

Global Components (all/)

Area-Specific Components

Page-Specific Components

Working with Data

Styling with Tailwind CSS

Custom Colors

Responsive Design

Real-World Example: Ana’s Supplements Theme

Best Practices

Troubleshooting

Component Not Rendering

Styles Not Applying

Data Not Loading

Next Steps