this area and the non-infringing side wishes to pack a scrum, the mark of the scrum will be moved into the zone by the referee. Generally, points where the dashed lines intersect other lines will be marked with a "T" or cross shape, although the extensions of dashed lines are generally not drawn within 5 metres of the goal lines or sidelines, to allow a clear demarcation of the field of play's boundaries. The Laws require the playing area to be rectangular in shape, however variations may be permitted with the approval of relevant unions. A notable example is Chatswood Oval in Sydney, Australia, an elliptically shaped cricket ground which is the home of Gordon rugby club, that has curved dead-ball lines to maximise the available in-goal space. Where multiple sports share a field (e.g. a rugby league and a rugby union club sharing one field), lines may be overlaid on top of each other, sometimes in different colours. However, particularly for television, rugby union line markings are generally painted white. Some exceptions include the Wallabies (Australia's national team) who often have yellow markings. Local clubs may use black, yellow, or other colours on grass, with other surfaces possibly requiring different marking techniques. Unlike association football, where on-field advertising is strictly forbidden in the laws, World Rugby allows sponsors logos to be painted on the playing surface. This is another way in which clubs can make money in the professional era and is also often used by host nations, professional leagues and tournaments as additional revenue streams, particularly when games are broadcast. In recent years, augmented reality technology has been used to replace painting to protect the surface or save costs on painting fields, producing a similar effect for broadcast albeit sometimes with poorer results. In-goal areas The in-goal areas sit behind the goal lines, equivalent to American football's "end zones". The in-goal areas must be between deep and cover the full width of the field. A ball grounded in this area by an attacking player will generally result in a try being awarded, unless there has been a previous infringement or the player has gone out-of-bounds whilst in possession of the ball. Perimeter area The perimeter area is considered "out-of-bounds" for the ball and the players, normally resulting in the non-infringing team receiving possession of the ball at a restart. The perimeter area can be divided into two areas: