message: Add graph row number to label
diff: @@ -1260,6 +1260,8 @@ public:
  mouse_pos.x <= pos.x + w &&
  mouse_pos.y >= pos.y &&
  mouse_pos.y <= pos.y + h;
  +
  + num++;
  }
  float ts_to_x( int64_t ts )
  @@ -1295,6 +1297,7 @@ public:
  }
  public:
  + uint32_t num = 0;
  ImVec2 pos;
  float h;
  @@ -1408,11 +1411,14 @@ void TraceWin::render_graph_row( const std::string &comm, std::vector< uint32_t
  col_get( col_Indigo ) );
  }
  + std::string label;
  float x = gi.pos.x + ImGui::GetStyle().FramePadding.x;
  - std::string label = string_format( "%u events", num_events );
  - imgui_draw_text( x, gi.pos.y, comm.c_str(),
  + label = string_format( "%u) %s", gi.num, comm.c_str() );
  + imgui_draw_text( x, gi.pos.y, label.c_str(),
  col_get( col_LightYellow ) );
  +
  + label = string_format( "%u events", num_events );
  imgui_draw_text( x, gi.pos.y + ImGui::GetTextLineHeight(), label.c_str(),
  col_get( col_LightYellow ) );
  }
  