Fremantle have dropped the anchor from their new playing strip and will consider developing a new AFL theme song.

The Dockers launched their new logo and playing strips on Friday, with significant changes to both.

The new logo features the anchor intertwined with the letter `D'

But the anchor held by the solidly-built Docker has been removed from the front of the playing strip, as well as the red and green panels.

The new home jersey is purple with three white Vs on the chest and the away jumper white with three purple Vs.

Both were inspired by the club's heritage jumper first worn in 2003.

Fremantle's theme song is widely derided as the worst in the league and the club will seek opinion from their fans to determine whether it needs changing.

"In the 2011 pre-season, the club will seek feedback from members, supporters and the general public on the Fremantle Dockers club song, including possible alternatives," chief executive Steve Rosich said.

"One of the options will be to retain the existing club song."

Rosich said fans had heavily endorsed the colour purple for the jersey.

"The colour purple was the brand element that members and other stakeholders most strongly felt should be associated with the Fremantle Football Club," he said.

"Purple was seen as being strong, liked and unique.

"Consequently, the colour purple features prominently in both the new logo and jumper design."

Meanwhile, 28-year-old defender Luke McPharlin has agreed to a two-year contract extension, tying him to the club until the end of 2012.

The retention of McPharlin was crucial for the Dockers after Chris Tarrant informed the club he would be moving back to Victoria.

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