---
title: Theme Customization
product: Form Library
description: Use multiple color pickers to pick out and apply a custom color to each element of your survey UI to make it match your brand's unique identity and design. View a free demo for JavaScript to learn more.
framework: Vue 3
source: https://surveyjs.io/form-library/examples/create-custom-ui-theme/vue3js
index: https://surveyjs.io/form-library/examples/overview.md
---

# Theme Customization (Vue 3)

## Files

### `public/index.html`

```html
<div id="app" style="position: absolute; top: 0; left: 0; right: 0; bottom: 0; height:100%"></div>
```

### `src/App.vue`

```html
<template>
    <SurveyComponent :model="survey" />
</template>
<script setup lang="ts">
    import { Model } from "survey-core";
    import { SurveyComponent } from "survey-vue3-ui";
    import "survey-core/survey-core.min.css";
    import "./index.css";
    import { json } from "./json";

    const survey = new Model(json);
    survey.onComplete.add((sender, options) => {
        console.log(JSON.stringify(sender.data, null, 3));
    });
    survey.data = {
      "qualities": {
        "affordable": 5,
        "does-what-it-claims": 4,
        "better-than-others": 3,
        "easy-to-use": 4
      },
      "satisfaction-score": 4
    };
</script>
```

### `src/index.css`

```css
/* You can add your custom CSS here. */
```

### `src/json.ts`

```ts
export const json = {
  "elements": [{
    "type": "matrix",
    "name": "qualities",
    "title": "Please indicate if you agree or disagree with the following statements",
    "columns": [{
      "value": 5,
      "text": "Strongly agree"
    }, {
      "value": 4,
      "text": "Agree"
    }, {
      "value": 3,
      "text": "Neutral"
    }, {
      "value": 2,
      "text": "Disagree"
    }, {
      "value": 1,
      "text": "Strongly disagree"
    }],
    "rows": [{
      "value": "affordable",
      "text": "Product is affordable"
    }, {
      "value": "does-what-it-claims",
      "text": "Product does what it claims"
    }, {
      "value": "better-than-others",
      "text": "Product is better than other products on the market"
    },{
      "value": "easy-to-use",
      "text": "Product is easy to use"
    }]
  }, {
    "type": "rating",
    "name": "satisfaction-score",
    "title": "How satisfied are you with our product?",
    "minRateDescription": "Not satisfied",
    "maxRateDescription": "Completely satisfied"
  }, {
    "type": "comment",
    "name": "suggestions",
    "title": "What would make you more satisfied with our product?"
  }]
};
```

### `src/main.ts`

```ts
import { createApp } from "vue";
import App from "./App.vue";

const app = createApp(App);
app.mount("#app");
```

### `src/shims-vue.d.ts`

```ts
/* eslint-disable */
declare module "*.vue" {
    import type { DefineComponent } from "vue"
    const component: DefineComponent<{}, {}, any>
    export default component
}
```

### `.eslintrc.js`

```js
module.exports = {
    root: true,
    env: {
        node: true
    },
    extends: [
        "plugin:vue/vue3-essential",
        "eslint:recommended",
        "@vue/typescript/recommended",
        "@vue/prettier",
        "@vue/prettier/@typescript-eslint"
    ],
    parserOptions: {
        ecmaVersion: 2020
    },
    rules: {
        "no-console": process.env.NODE_ENV === "production" ? "warn" : "off",
        "no-debugger": process.env.NODE_ENV === "production" ? "warn" : "off"
    },
    overrides: [
        {
            files: [
                "**/__tests__/*.{j,t}s?(x)",
                "**/tests/unit/**/*.spec.{j,t}s?(x)"
            ],
            env: {
                jest: true
            }
        }
    ]
};
```

### `babel.config.js`

```js
module.exports = {
  presets: ["@vue/cli-plugin-babel/preset"]
};
```

### `package.json`

```json
{
  "name": "surveyjs-library-vue3",
  "version": "0.1.0",
  "scripts": {
    "serve": "vue-cli-service serve",
    "build": "vue-cli-service build",
    "lint": "vue-cli-service lint"
  },
  "dependencies": {
    "core-js": "^3.6.5",
    "tslib": "2.6.1",
    "vue": "^3.4.1",
    "survey-core": "latest",
    "survey-vue3-ui": "latest",
    "vue-router": "^4.0.0-0",
    "vuex": "^4.0.0-0"
  },
  "devDependencies": {
    "@typescript-eslint/eslint-plugin": "^2.33.0",
    "@typescript-eslint/parser": "^2.33.0",
    "@vue/cli-plugin-babel": "~4.5.0",
    "@vue/cli-plugin-eslint": "~4.5.0",
    "@vue/cli-plugin-pwa": "~4.5.0",
    "@vue/cli-plugin-router": "~4.5.0",
    "@vue/cli-plugin-typescript": "~4.5.0",
    "@vue/cli-plugin-vuex": "~4.5.0",
    "@vue/cli-service": "~4.5.0",
    "@vue/compiler-sfc": "^3.0.0",
    "@vue/eslint-config-prettier": "^6.0.0",
    "@vue/eslint-config-typescript": "^5.0.2",
    "@vue/test-utils": "^2.0.0-0",
    "eslint": "^6.7.2",
    "eslint-plugin-prettier": "^3.1.3",
    "eslint-plugin-vue": "^7.0.0-0",
    "node-sass": "^4.12.0",
    "prettier": "^1.19.1",
    "sass-loader": "^8.0.2",
    "typescript": "~3.9.3"
  }
}
```

### `tsconfig.json`

```json
{
  "compilerOptions": {
    "target": "esnext",
    "module": "esnext",
    "strict": true,
    "jsx": "preserve",
    "importHelpers": true,
    "moduleResolution": "node",
    "skipLibCheck": true,
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "sourceMap": true,
    "baseUrl": ".",
    "types": [
      "webpack-env",
      "jest"
    ],
    "paths": {
      "@/*": [
        "src/*"
      ]
    },
    "lib": [
      "esnext",
      "dom",
      "dom.iterable",
      "scripthost"
    ]
  },
  "include": [
    "src/**/*.ts",
    "src/**/*.tsx",
    "src/**/*.vue",
    "tests/**/*.ts",
    "tests/**/*.tsx"
  ],
  "exclude": [
    "node_modules"
  ]
}
```

## Other Frameworks

- [Angular](https://surveyjs.io/form-library/examples/create-custom-ui-theme/angular.md)
- [React](https://surveyjs.io/form-library/examples/create-custom-ui-theme/reactjs.md)
- [jQuery](https://surveyjs.io/form-library/examples/create-custom-ui-theme/jquery.md)
- [Vanilla JS](https://surveyjs.io/form-library/examples/create-custom-ui-theme/vanillajs.md)