Version: 2018.1
public static void SetPlatformIcons (BuildTargetGroup platform, PlatformIconKind kind, PlatformIcon[] icons);

Parameters

typeEach platform supports a different set of icon kinds. These can be found in the specific platform namespace (for example iOSPlatformIconKind).
platformThe full list of platforms that support this API the supported kinds can be found in icon kinds.
iconsAll available PlatformIcon slots must be retrieved with GetPlatformIcons.

Description

Assign a list of icons for the specified platform and icon kind.

Most platforms support icons with several different sizes. This methods allows you to set Icons for each platform that supports them. GetPlatformIcons has to be used to retrieve all the supported icons for specified PlatformIconKind and platform.

// Setting all ‘App’ icons for iOS
using UnityEditor.iOS;

void SetIcons(Texture2D[] textures) { var platform = BuildTargetGroup.iOS;
 var kind = UnityEditor.iOS.iOSPlatformIconKind.Application;

var icons = PlayerSettings.GetPlatformIcons(platform, kind);

//Assign textures to each available icon slot. for (var i = 0; i < icons.Length; i++) { icons[i].SetTexture(textures[0]);
 }

PlayerSettings.SetPlatformIcons(platform, kind, icons); }

// ‘Adaptive’ icons for Android require a background and foreground layer for each icon using UnityEditor.Android;

void SetIcons(Texture2D[][] textures) { var platform = BuildTargetGroup.Android; 
 var kind = UnityEditor.Android.AndroidPlatformIconKind.Adaptive;

var icons = PlayerSettings.GetPlatformIcons(platform, kind);

//Assign textures to each available icon slot. for (var i = 0; i < icons.Length; i++) { icons[i].SetTextures(textures[i]);
 } PlayerSettings.SetPlatformIcons(platform, kind, icons); }