Cleanup: spelling in comments

source/blender/blenkernel/intern/spline_base.cc

@@ -355,7 +355,7 @@ GVArrayPtr Spline::interpolate_to_evaluated_points(GSpan data) const
 
 /**
  * Sample any input data with a value for each evaluated point (already interpolated to evaluated
- * points) to arbitrary parameters in betwen the evaluated points. The interpolation is quite
+ * points) to arbitrary parameters in between the evaluated points. The interpolation is quite
  * simple, but this handles the cyclic and end point special cases.
  */
 void Spline::sample_based_on_index_factors(const GVArray &src,

source/blender/depsgraph/intern/depsgraph_query.cc

@@ -168,7 +168,7 @@ ViewLayer *DEG_get_evaluated_view_layer(const Depsgraph *graph)
   const deg::Depsgraph *deg_graph = reinterpret_cast<const deg::Depsgraph *>(graph);
   Scene *scene_cow = DEG_get_evaluated_scene(graph);
   if (scene_cow == nullptr) {
-    return nullptr; /* Happens with new, not-yet-built/evaluated graphes. */
+    return nullptr; /* Happens with new, not-yet-built/evaluated graphs. */
   }
   /* Do name-based lookup. */
   /* TODO(sergey): Can this be optimized? */

source/blender/editors/gpencil/gpencil_edit.c

@@ -2779,7 +2779,7 @@ void GPENCIL_OT_dissolve(wmOperatorType *ot)
 
 /* Poll callback for snap operators */
 /* NOTE: For now, we only allow these in the 3D view, as other editors do not
- *       define a cursor or gridstep which can be used
+ *       define a cursor or grid-step which can be used.
  */
 static bool gpencil_snap_poll(bContext *C)
 {

source/blender/editors/sculpt_paint/paint_image_proj.c

@@ -300,7 +300,7 @@ typedef struct ProjPaintState {
   /** Calculated from screenMin & screenMax. */
   float screen_width;
   float screen_height;
-  /** from the carea or from the projection render. */
+  /** From the area or from the projection render. */
   int winx, winy;
 
   /* options for projection painting */

source/blender/editors/space_outliner/outliner_edit.c

@@ -154,7 +154,9 @@ void OUTLINER_OT_highlight_update(wmOperatorType *ot)
 /** \name Toggle Open/Closed Operator
  * \{ */
 
-/* Open or close a tree element, optionally toggling all children recursively */
+/**
+ * Open or close a tree element, optionally toggling all children recursively.
+ */
 void outliner_item_openclose(SpaceOutliner *space_outliner,
                              TreeElement *te,
                              bool open,
@@ -1599,8 +1601,10 @@ void OUTLINER_OT_show_one_level(wmOperatorType *ot)
 /** \name Show Hierarchy Operator
  * \{ */
 
-/* Helper function for tree_element_shwo_hierarchy() -
- * recursively checks whether subtrees have any objects. */
+/**
+ * Helper function for #tree_element_shwo_hierarchy() -
+ * recursively checks whether subtrees have any objects.
+ */
 static int subtree_has_objects(ListBase *lb)
 {
   LISTBASE_FOREACH (TreeElement *, te, lb) {

source/creator/creator.c

@@ -233,8 +233,8 @@ void gmp_free(void *ptr, size_t size)
 }
 /**
  * Use TBB's scalable_allocator on Windows.
- * TBBmalloc correctly captures all allocations already,
- * however, GMP is built with mingw since it doesn't build with msvc,
+ * `TBBmalloc` correctly captures all allocations already,
+ * however, GMP is built with MINGW since it doesn't build with MSVC,
  * which TBB has issues hooking into automatically.
  */
 void gmp_blender_init_allocator()