# account.installTheme

> Install a theme

[Back to methods index](index.html)



Install a theme

### Parameters:

| Name     |    Type       | Description | Required |
|----------|---------------|-------------|----------|
|dark|[Bool](/API_docs/types/Bool.html) | Whether to install the dark version | Optional|
|theme|[InputTheme](/API_docs/types/InputTheme.html) | Theme to install | Optional|
|format|[string](/API_docs/types/string.html) | Theme format, a string that identifies the theming engines supported by the client | Optional|
|base\_theme|[BaseTheme](/API_docs/types/BaseTheme.html) | Indicates a basic theme provided by all clients | Optional|


### Return type: [Bool](/API_docs/types/Bool.html)

### Can users use this method: **YES**


### Can bots use this method: **NO**


### Can bots use this method over a business connection with the `businessConnectionId` flag: **NO**


### MadelineProto Example ([now async for huge speed and parallelism!](https://docs.madelineproto.xyz/docs/ASYNC.html)):


```php
if (!file_exists('madeline.php')) {
    copy('https://phar.madelineproto.xyz/madeline.php', 'madeline.php');
}
include 'madeline.php';

$MadelineProto = new \danog\MadelineProto\API('session.madeline');
$MadelineProto->start();

$Bool = $MadelineProto->account->installTheme(dark: $Bool, theme: $InputTheme, format: 'string', base_theme: $BaseTheme, );
```