How can I configure the font size for the tree item in the package explorer in Eclipse?

Question

How can I configure the font size for the tree item in the package explorer/outline in Eclipse?

Which item in Font under Preferences I should change?

Answer 1

Eclipse uses a system user interface font for Project Explorer, so you can change it with an OS-specific method. Note: Eclipse will have to be restarted even if other apps respond immediately to the font change.

• On Linux (Gnome), I was able to alter Eclipse's font with Gnome Tweak Tool (Applications → Utilities → Tweak Tool). If it's not already installed, try sudo yum install gnome-tweak-tool or sudo apt-get install gnome-tweak-tool. In the Fonts page, change the Interface font.
• On Windows 7, go to Control Panel → Personalization → Window Color and Appearance → Advanced Appearance Settings → Change the font size for "Message Box". (credit: Nathan Monteleone)
• On Mac, unpack the Tinker Tool, run it, go to the Fonts tab and adjust the size of Help tags (tested with Eclipse 2018-12).

Some other parts of Eclipse will also be affected, such as the startup dialog.

Answer 2

Here is an option that works on my Windows7 machine suggested by Diego V: https://stackoverflow.com/a/15011440/1713920

On Juno you can adjust that font by CSS.

Lookup the files in eclipse\plugins\org.eclipse.platform_4.2.x.y\css 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 */
}

Answer 3

In Eclipse v4.2 (Juno) you can modify the CSS by going to menu Window → Preferences → General → Appearances.

Answer 4

Does your Eclipse .ini file contain a reference to 'smallFonts?' On Mac you might see something like...

-Dorg.eclipse.swt.internal.carbon.smallFonts

If you remove this line, you'll see the font size in various views fatten up.

Answer 5

As someone has already mentioned previously, modifying the "e4_basestyle.css" file worked for me on Eclipse v4.3 (Kepler) and Windows 8.

Also, I find that you must also change the text size/style under

Preferences → Team → Git → LabelDecorations

or

Preferences → Appearance → ColorsAndFonts, under the Git section.

to make sure that text size/colors for uncommitted files are in sync with your changes. This is of course if you initialise your project as a repository.

Answer 6

Eclipse v4.5 (Mars) using the built-in dark theme on Linux.

eclipse/plugins/org.eclipse.ui.themes_1.1.0.v20150511-0913/css/dark/e4-dark_globalstyle.css

Around line 204, you can add your chosen font size:

background-color: #2F2F2F;
color: #CCC;
font-size: 8;