text:         draw_list->AddRectFilledMultiColor(canvas_pos, ImVec2(canvas_pos.x + canvas_size.x, canvas_pos.y + canvas_size.y), IM_COL32(50,50,50,255), IM_COL32(50,50,60,255), IM_COL32(60,60,70,255), IM_COL32(50,50,60,255));
  