message: Minor tweaks/comments. Note that the reordering the one subtraction caused subtle havoc before the patch in
diff: @@ -4406,7 +4406,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
  else if (held)
  {
  // We don't use an incremental MouseDelta but rather compute an absolute target size based on mouse position
  - size_target = (g.IO.MousePos - g.ActiveIdClickOffset + resize_rect.GetSize()) - window->Pos;
  + size_target = (g.IO.MousePos - g.ActiveIdClickOffset - window->Pos) + resize_rect.GetSize();
  }
  if (size_target.x != FLT_MAX && size_target.y != FLT_MAX)
  @@ -10472,8 +10472,8 @@ bool ImGui::EndColumns()
  {
  float x = window->Pos.x + GetColumnOffset(i);
  const ImGuiID column_id = window->DC.ColumnsSetId + ImGuiID(i);
  - const float column_w = 4.0f; // Width for interaction
  - const ImRect column_rect(ImVec2(x - column_w, y1), ImVec2(x + column_w, y2));
  + const float column_hw = 4.0f; // Half-width for interaction
  + const ImRect column_rect(ImVec2(x - column_hw, y1), ImVec2(x + column_hw, y2));
  if (IsClippedEx(column_rect, column_id, false))
  continue;
  @@ -10484,7 +10484,7 @@ bool ImGui::EndColumns()
  if (hovered || held)
  g.MouseCursor = ImGuiMouseCursor_ResizeEW;
  if (held && g.ActiveIdIsJustActivated)
  - g.ActiveIdClickOffset.x -= column_w; // Store from center of column line (we used a 8 wide rect for columns clicking). This is used by GetDraggedColumnOffset().
  + g.ActiveIdClickOffset.x -= column_hw; // Store from center of column line (we used a 8 wide rect for columns clicking). This is used by GetDraggedColumnOffset().
  if (held)
  dragging_column = i;
  }
  