What is this Android folder icon with a small yellow circle in the lower right corner?

问题

Preface

This question is different from What is this Android folder icon with a set of three vertical bars in the lower right corner? because I am asking about a different icon. I split these up into their own questions because of this answer to a meta question

Background

I am trying to find the formal name for this folder icon () that appears next to every app directory in Android.

I have looked in the following documentation:

1. The IntelliJ icon reference

2. Under Android Studio > Preferences > Editor > File Types (on Mac)

3. Looking at the balloon for the folder when waving the mouse over it:

None of these mention what the folder icon means or if they do they are not specific enough.

Question

What is the name for ()? Please provide documentation in your answer.

回答1:

It denotes the Android module.

来源：https://stackoverflow.com/questions/52190956/what-is-this-android-folder-icon-with-a-small-yellow-circle-in-the-lower-right-c