feat: ability to customize action button color

docs/actions.rst

@@ -58,3 +58,20 @@ a single record::
             else:
                 self.datamodel.delete(items)
             return redirect(self.get_redirect())
+
+To customize the button color when the ``single`` parameter is ``True``, you can assign 
+the ``btn_class`` value based on the intended action. 
+::
+
+        @action("delete", "Delete", "Delete all Really?", "fa-rocket", btn_class="btn-danger")
+        def muldelete(self, items):
+            if isinstance(items, list):
+                self.datamodel.delete_all(items)
+                self.update_redirect()
+            else:
+                self.datamodel.delete(items)
+            return redirect(self.get_redirect())
+
+In this example, the ``btn_class`` parameter 
+is explicitly set to **btn-danger** to reflect the critical nature of the **Delete** action, ensuring 
+the button visually communicates its purpose effectively.

flask_appbuilder/actions.py

@@ -1,11 +1,14 @@
 class ActionItem(object):
-    def __init__(self, name, text, confirmation, icon, multiple, single, func):
+    def __init__(
+        self, name, text, confirmation, icon, multiple, single, btn_class, func
+    ):
         self.name = name
         self.text = text or name
         self.confirmation = confirmation
         self.icon = icon
         self.multiple = multiple
         self.single = single
+        self.btn_class = btn_class
         self.func = func
 
     def __repr__(self):
@@ -17,7 +20,15 @@ def __repr__(self):
         )
 
 
-def action(name, text, confirmation=None, icon=None, multiple=True, single=True):
+def action(
+    name,
+    text,
+    confirmation=None,
+    icon=None,
+    multiple=True,
+    single=True,
+    btn_class="btn-primary",
+):
     """
     Use this decorator to expose actions
 
@@ -34,10 +45,12 @@ def action(name, text, confirmation=None, icon=None, multiple=True, single=True)
         If true will display action on list view
     :param single:
         If true will display action on show view
+    :param btn_class:
+        Bootstrap button class name. Defaults to btn-primary
     """
 
     def wrap(f):
-        f._action = (name, text, confirmation, icon, multiple, single)
+        f._action = (name, text, confirmation, icon, multiple, single, btn_class)
         return f
 
     return wrap

flask_appbuilder/templates/appbuilder/general/lib.html

@@ -25,7 +25,7 @@
             <a
                 id="btn-action-{{ endpoint }}-{{ action.name }}"
                 href="#"
-                class="btn btn-sm btn-primary"
+                class="btn btn-sm {{ action.btn_class }}"
             >
                 <i class="fa {{action.icon}}"></i>
                 {{_(action.text)}}