css - I cannot change the font size of package explorer in Eclipse

Question

I try to change the font size of package explorer in Eclipse from menu Window → Preferences → General → Appearance, and I fail to change the font size. How can I do that? I use Eclipse v4.2 (Juno) on Windows 7.

Answer 1

On Juno and up you can adjust that font by CSS.

Lookup the files in eclipsepluginsorg.eclipse.platform_4.2.x.ycss for your current style sheet (probably e4_default_win7.css), and then just add the following rule:

#org-eclipse-jdt-ui-PackageExplorer Tree,
#org-eclipse-ui-navigator-ProjectExplorer Tree {
  font-size: 10px; /* <-- Desired font size */
}

Update: stylesheets are in eclipse/plugins/org.eclipse.ui.themes_x.x.x.vxxxxx/css folder since Eclipse 4.4 (Luna).