Ways to modify Eclipse's package explore font

1. Open the installation directory for Eclipse, mine is: D:\JAVA_DEV\eclipse. Then go to the plugins directory to find the folder starting with Org.eclipse.ui.themes, my corresponding eclipse version of the folder is org.eclipse.ui.themes_1.1.0.v20150511-0913, In this directory, locate the folder with the name CSS. For my specific situation, the full directory of the folder I opened is: D:\JAVA_DEV\eclipse\plugins\org.eclipse.ui.themes_1.1.0.v20150511-0913\css

2. Locate the file under the above folder: E4_default_win7.css, and add the following to the end of the file: #org-eclipse-jdt-ui-packageexplorer Tree, # Org-eclipse-ui-navigator-projectexplorer tree, #org-eclipse-ui-views-contentoutline tree, # Perspectiveswitcher ToolBar { font-size:10px; }