java - IntelliJ directory little blue dot label in maven -

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so i'm working on java/scala maven project in intellij. made new directory, , filled out src , test stuff, it's not behaving same other directories.

enter image description here

what little blue square mean? important? how make new directory (second one) behave same?

thanks in advance, sorry if stupid question.

it means folder cis defined intellij module.

complete list of intellij icons: https://www.jetbrains.com/idea/help/symbols.html


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