select/set color/prefix improved

1.7.5

- feat: Select/set by color and by prefix now works on every displayed dopesheet layer (and react correctly to filters)
- ui: exposed user prefs `Channel Group Color` prop in dopesheet > sidebar > View > Display panel

UI_tools.py

@@ -355,7 +355,6 @@ class GPTB_PT_cam_ref_panel(bpy.types.Panel):
                     row.prop(bg_img, 'show_background_image', text='')# options={'HIDDEN'}
  """
 
-
 def palette_manager_menu(self, context):
     """Palette menu to append in existing menu"""
     # GPENCIL_MT_material_context_menu
@@ -371,6 +370,14 @@ def palette_manager_menu(self, context):
     layout.operator("gp.clean_material_stack", text='Clean material Stack', icon='NODE_MATERIAL')
 
 
+def expose_use_channel_color_pref(self, context):
+    # add in GreasePencilLayerDisplayPanel (gp dopesheet View > Display)
+    layout = self.layout
+    layout.use_property_split = True
+    layout.use_property_decorate = False
+    layout.label(text='Use Channel Colors (User preferences):')
+    layout.prop(context.preferences.edit, 'use_anim_channel_group_colors')
+
 classes = (
 GPTB_PT_sidebar_panel,
 GPTB_PT_checker,
@@ -385,8 +392,10 @@ def register():
     for cls in classes:
         bpy.utils.register_class(cls)
     bpy.types.GPENCIL_MT_material_context_menu.append(palette_manager_menu)
+    bpy.types.DOPESHEET_PT_gpencil_layer_display.append(expose_use_channel_color_pref)
 
 def unregister():
+    bpy.types.DOPESHEET_PT_gpencil_layer_display.remove(expose_use_channel_color_pref)
     bpy.types.GPENCIL_MT_material_context_menu.remove(palette_manager_menu)
     for cls in reversed(classes):
         bpy.utils.unregister_class(cls)