LocalizableItemAttributedefaultTemplate Field

public string defaultTemplate

[KSPField(guiName = "just-in-case text", guiActive = true)]
[LocalizableItem(
    tag = "#tag1",
    defaultTemplate = "English text 1",
    description = "A field which demonstrates a localizable GUI string")]
public string field1 = "";

// This field doesn't have guiName and it would, normally, be treated as a non-GUI field. However,
// due to the localization attribute, the guiName value will be assigned when the module is
// loaded.
[KSPField(guiActive = true)]
[LocalizableItem(
    tag = "#tag2",
    defaultTemplate = "English text 2",
    description = "A field which demonstrates a localizable GUI string without guiName")]
public string field2 = "";