message: Rename imgSize to imageWidth
  Often "size" represents a NAS2D::Vector, so probably better to name this
  "width", which is always a scalar.
diff: @@ -39,10 +39,10 @@ RobotInspector::RobotInspector() :
  const int buttonHeight = mainFont.height() + padding;
  const int buttonOffsetY = buttonHeight + constants::MARGIN_TIGHT;
  - const int imgSize = robotImage(Robot::Type::Digger).size().x + padding;
  + const int imageWidth = robotImage(Robot::Type::Digger).size().x + padding;
  mContentArea = {
  - imgSize,
  + imageWidth,
  sWindowTitleBarHeight + constants::MARGIN,
  mainFontBold.width("Age") + mainFont.width(" 9999"),
  mainFont.height() + constants::MARGIN
  @@ -52,7 +52,7 @@ RobotInspector::RobotInspector() :
  size({ buttonWidth + robotImage(Robot::Type::Digger).size().x + padding + constants::MARGIN, 0 });
  - auto buttonPosition = Vector{ imgSize, mContentArea.y + mContentArea.height + constants::MARGIN };
  + auto buttonPosition = Vector{ imageWidth, mContentArea.y + mContentArea.height + constants::MARGIN };
  btnCancelOrders.size({ buttonWidth, buttonHeight });
  add(btnCancelOrders, buttonPosition);
  