- fixed some recently introduced issues for the Milling and Drilling Plugins; those plugins did not had the pluginName defined in the Plugin UI

- in the canvas context menu added the menu for color changing
- when doing color changing now only Gerber and Excellon objects can have the colors changed

appPlugins/ToolDrilling.py

@@ -2255,6 +2255,8 @@ class ToolDrilling(AppTool, Excellon):
 
 class DrillingUI:
 
+    pluginName = _("Drilling")
+
     def __init__(self, layout, app, name):
         self.app = app
         self.decimals = self.app.decimals

appPlugins/ToolMilling.py

@@ -3532,6 +3532,8 @@ class ToolMilling(AppTool, Excellon):
 
 class MillingUI:
 
+    pluginName = _("Milling")
+
     def __init__(self, layout, app, name):
         self.app = app
         self.decimals = self.app.decimals