# App logo

Every app in Make has its own logo and color. The combination of logo and color represents the app. With a distinct logo and color, the users quickly see which module belongs to which app.

<figure><img src="/files/C321mcACbXJWDQNoVLYJ" alt="" width="563"><figcaption></figcaption></figure>

## App theme

The app theme is the module color in hexadecimal format. For example, the Make module's color is `#6e21cc`.

## App logo

To add a logo to your custom app, make sure your logo file meets these requirements:

* an image file in `.png` format
* square dimensions: minimum size 512 x 512 px and maximum size 2048 x 2048 px
* a maximum size of 500 kB

Make processes the logo file so that:

* Areas in the logo that are white or transparent will be displayed as the color specified in the **Theme** field.
* Areas in the logo that are black will be converted to full opacity and will be displayed as white.
* Areas in the logo that are in color or are semi-transparent will be displayed as the color between white and the color specified in the **Theme** field.

{% hint style="info" %}
If you don't have any tool to edit your file with the logo, you can use the [Lunapic](https://www9.lunapic.com/editor/) free editor.

For creating a transparent layer, you can use the [Transparent Background ](https://www9.lunapic.com/editor/?action=transparent)tool that is available in Lunapic.
{% endhint %}

## Examples of how logos are rendered

<figure><img src="/files/FCk6aKp2jzeux7eEHiIr" alt=""><figcaption><p>Example of logos with one color</p></figcaption></figure>

<figure><img src="/files/fWNyHKx6l6RfL4AUYFlE" alt=""><figcaption><p>Example of grayscale logos</p></figcaption></figure>

<figure><img src="/files/GRNzy1DQR6ICbpDPhZ15" alt=""><figcaption><p>Example of color logos</p></figcaption></figure>

## Work with semi-transparent pixels

An app can have only one theme color. You can use multiple transparency levels to give your logo multiple shades of the theme color. You can also create a 3D effect.

<figure><img src="/files/nMypryae3npvCOuoLb5l" alt=""><figcaption><p>Example of apps with multiple transparency levels</p></figcaption></figure>

## Update the app's theme and/or logo

You can update the custom app's logo anytime. Navigate to your custom app settings and click **Options** > **Edit**.

{% hint style="warning" %}
If your app has been approved, the change of theme/logo needs to be approved by Make.
{% endhint %}

After you upload or update the logo or theme color, it may take up to 1 hour for the changes to be propagated across the Make platform.


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