Bug 73027 [Dialogs] Buttons are too high
I20040831 Buttons are no longer oval but have a rounded rectangle shape (see first screenshot). The second screenshot shows how buttons using the small system font should look like.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/PathVariablesGroup.java
* 	logically ORed together.
     * @param selectionListener listener notified when the selection changes
     * 	in the variables list.
     */
    public PathVariablesGroup(boolean multiSelect, int variableType,
            Listener selectionListener) {
        this(multiSelect, variableType);
        this.selectionListener = selectionListener;
    }
    /**
     * Opens a dialog for creating a new variable.
     */
    private void addNewVariable() {
        
        PathVariableDialog dialog = new PathVariableDialog(shell,
                PathVariableDialog.NEW_VARIABLE, variableType,
                pathVariableManager, tempPathVariables.keySet());
        
        if (dialog.open() == Window.CANCEL)
            return;
        
        
        String newVariableName = dialog.getVariableName();
        IPath newVariableValue = new Path(dialog.getVariableValue());
        tempPathVariables.put(newVariableName, newVariableValue);
        
        updateWidgetState(newVariableName);
    }
    /**
     * Creates the widget group.