GUI Bugfix - Handle underscores in config options correctly

lib/gui/control_helper.py

@@ -1045,8 +1045,9 @@ class ControlBuilder():
         intro = ""
         if any(line.startswith(" - ") for line in all_help):
             intro = all_help[0]
-        retval = (intro, {re.sub(r'[^A-Za-z0-9\-]+', '',
-                                 line.split()[1].lower()): " ".join(line.split()[1:])
+        retval = (intro,
+                  {re.sub(r"[^A-Za-z0-9\-\_]+", "",
+                          line.split()[1].lower()): " ".join(line.replace("_", " ").split()[1:])
                    for line in all_help if line.startswith(" - ")})
         logger.debug("help items: %s", retval)
         return retval

plugins/train/model/_base.py

@@ -944,8 +944,6 @@ class _Weights():
         in the plugin's configuration. """
         # Blanket unfreeze layers, as checking the value of :attr:`layer.trainable` appears to
         # return ``True`` even when the weights have been frozen
-        # TODO this may cause some issues with some keras-app models that are meant to have some
-        # frozen layers
         for layer in _get_all_sub_models(self._model):
             layer.trainable = True