Nov 22, 2024 · Each file format in IntelliJ IDEA has a dedicated icon. In the Project tool window ( View | Tool Windows | Project ) , these icons help you quickly identify with what kind of files you are working with.

Find all IntelliJ (v15) symbols over here: https://www.jetbrains.com/idea/help/symbols.html. This site states that this icon stands for "Java class located out of the source root. Refer to the section Configuring Content Roots for details."

Feb 3, 2025 · Press Ctrl Alt 0S to open settings and then select Appearance & Behavior | Menus and Toolbars. Select the menu option for which you want to change or add an icon and click . Select an icon from the list or click to upload your own …

Apr 29, 2021 · The proper way is to create the Custom UI Theme plugin for the IntelliJ platform and install it into the IDE. The default IntelliJ Platform UI icons can be replaced by custom icons. The file format for icons is SVG. The JetBrains Platform UI Guideline for Icons has detailed specifications for icons.

Aug 25, 2016 · Generally circle icons are related to file in directory recognized from IntelliJ as source, squares are files not in a source directory. For a complete description of each icon you can see the following links: If a file is not under a directory tree marked as source root it …

Feb 22, 2017 · Of late, I have experienced an issue where java file in IntelliJ come up with below icon which is not an usual one. Along with this, I can not look up classes using "Ctrl + N" option. If I press ctrl + right click on a method that exists outside of current file, it does not navigate there.

Aug 13, 2024 · — To use an existing icon, select the icon and use the icon reference in the plugin source code. — To modify an icon, select and download the SVG/PNG file(s). Modify the icon following the guidelines and add it to the plugin.

Set custom icons for your projects! From the Welcome Screen, right-click the project and select Set Custom Project Icon to select the icon from your machine. See how you can add a custom icon to your project.

The red circle with a strikethrough 'J' icon in IntelliJ indicates that the Java files are marked as excluded from compilation. This is often caused by project misconfigurations or the source folder being incorrectly set up in your Java project.

May 31, 2011 · Someone posted that the “J” icon also happens when your java file is too big. You can fix this by editing the “idea.max.intellisense.filesize” property in your “idea.properties” file. Here is how you do this if you are in windows vista or higher