# Custom Hypersync app icons and branding

Custom Hyperysnc apps must include four SVG files that users see while using the Hyperysnc app in the Hyperproof UI. These files must be SVG files, and they must follow certain naming and sizing rules. See the table below:

| File | Description | Sizing |
|  --- | --- | --- |
| `icon-small.svg` | A small icon shown when viewing the list of proof types generated via the Hypersync. | 20px x 20px |
| `icon-medium.svg` | A medium icon shown in the existing connection tiles in the **Choose app** modal. | 32px x 32px |
| `icon-large.svg` | A large icon shown when viewing the Hypersync cards on the **Automations** tab. | 48px x 48px |
| `brand.svg` | A brand image shown when creating a new Hypersync or editing an existing one. | 32px height |