private Font getFontForLineNumbers() {
    Font editorFont = myEditor.getColorsScheme().getFont(EditorFontType.PLAIN);
    float editorFontSize = editorFont.getSize2D();
    float delta = (float)AdvancedSettings.getInt("editor.gutter.linenumber.font.size.delta");
    return editorFont.deriveFont(Math.max(1f, editorFontSize + delta));
  }
private Font getFontForLineNumbers()