如何在Android Studio中更改图标颜色

我从material.io下载了一些图标，但它们仅提供黑色图标。我看了一个YouTube视频，他们用它们来选择颜色。无论如何，我正在尝试将图标的颜色更改为白色。我没有运气。我试图在android studio中更改填充颜色，但无法正常工作。任何帮助将不胜感激，例如确切的代码和向其添加代码的文件。谢谢。

I downloaded some icons from material.io but they only offer the icons in black. I saw a youtube video where they use to allow you to choose the color. Anyway, I am trying to change the colors of the icons to white. I am not having any luck. I tried to change the fill color in android studio but it doesn't work. Any assistance would be appreciated such as exact code and files to add the code to. Thanks.