Cleanup: spelling in comments

source/blender/animrig/intern/action_test.cc

@@ -321,7 +321,7 @@ TEST_F(ActionLayersTest, slot_remove)
   }
 
   { /* Removing an in-use slot doesn't un-assign it from its users.
-     * This is not that important, but it covers the current behaviour. */
+     * This is not that important, but it covers the current behavior. */
     Slot &slot = action->slot_add_for_id(cube->id);
     ASSERT_EQ(assign_action_and_slot(action, &slot, cube->id), ActionSlotAssignmentResult::OK);
 

source/blender/animrig/intern/animdata.cc

@@ -115,9 +115,9 @@ static bAction *find_related_action(Main &bmain, ID &id)
       }
 
       case ID_KE: {
-        /* Shapekeys.  */
+        /* Shape-keys. */
         Key *key = (Key *)related_id;
-        /* Shapekeys are not embedded but there is currently no way to reuse them. */
+        /* Shape-keys are not embedded but there is currently no way to reuse them. */
         BLI_assert(ID_REAL_USERS(related_id) == 1);
         related_ids.append_non_duplicates(key->from);
         break;
@@ -172,7 +172,7 @@ static bAction *find_related_action(Main &bmain, ID &id)
 
         Key *key = BKE_key_from_id(related_id);
         if (key) {
-          /* No check for multi user because the Shapekey cannot be shared. */
+          /* No check for multi user because the shape-key cannot be shared. */
           BLI_assert(ID_REAL_USERS(&key->id) == 1);
           related_ids.append_non_duplicates(&key->id);
         }

source/blender/blenkernel/BKE_lib_id.hh

@@ -154,7 +154,7 @@ enum {
   /** Create data-block outside of any main database -
    * similar to 'localize' functions of materials etc. */
   LIB_ID_CREATE_NO_MAIN = 1 << 0,
-  /** Do not affect user refcount of data-blocks used by new one
+  /** Do not affect user reference-count of data-blocks used by new one
    * (which also gets zero user-count then).
    * Implies LIB_ID_CREATE_NO_MAIN. */
   LIB_ID_CREATE_NO_USER_REFCOUNT = 1 << 1,
@@ -226,7 +226,7 @@ void BKE_libblock_copy_ex(Main *bmain, const ID *id, ID **new_id_p, int orig_fla
  * only.
  *
  * \param owner_library: the Library to 'assign' the newly created ID to. Use `nullptr` to make ID
- * not use any library (i.e. become a local ID). Use std::nullopt for default behavior (i.e.
+ * not use any library (i.e. become a local ID). Use #std::nullopt for default behavior (i.e.
  * behavior of the #BKE_libblock_copy_ex function).
  * \param new_owner_id: When copying an embedded ID, the owner ID of the new copy. Should be
  * `nullptr` for regular ID copying, or in case the owner ID is not (yet) known.
@@ -299,7 +299,7 @@ enum {
   /** Do not try to remove freed ID from given Main (passed Main may be NULL). */
   LIB_ID_FREE_NO_MAIN = 1 << 0,
   /**
-   * Do not affect user refcount of data-blocks used by freed one.
+   * Do not affect user reference-count of data-blocks used by freed one.
    * Implies LIB_ID_FREE_NO_MAIN.
    */
   LIB_ID_FREE_NO_USER_REFCOUNT = 1 << 1,
@@ -520,12 +520,12 @@ bool BKE_id_copy_is_allowed(const ID *id);
  */
 ID *BKE_id_copy_ex(Main *bmain, const ID *id, ID **new_id_p, int flag);
 /**
- * Enable coying non-local data into libraries.
+ * Enable copying non-local data into libraries.
  *
  * See #BKE_id_copy_ex for details.
  *
  * \param owner_library: the Library to 'assign' the newly created ID to. Use `nullptr` to make ID
- * not use any library (i.e. become a local ID). Use std::nullopt for default behavior (i.e.
+ * not use any library (i.e. become a local ID). Use #std::nullopt for default behavior (i.e.
  * behavior of the #BKE_id_copy_ex function).
  * \param new_owner_id: When copying an embedded ID, the owner ID of the new copy. Should be
  * `nullptr` for regular ID copying, or in case the owner ID is not (yet) known.

source/blender/makesrna/intern/rna_screen.cc

@@ -180,7 +180,7 @@ static void rna_Area_type_update(bContext *C, PointerRNA *ptr)
   }
 
   /* The set of visible geometry nodes gizmos depends on the visible node editors. So if a node
-   * editor becomes visible/invisble, the gizmos have to be updated. */
+   * editor becomes visible/invisible, the gizmos have to be updated. */
   WM_main_add_notifier(NC_NODE | ND_NODE_GIZMO, nullptr);
 }