SINGAPORE - Noticed a difference in the National Day Parade (NDP) mobile app logo?
It was changed after Mr Casey Chen, 41, claimed the first design used infringed on his copyright.
But the company which came up with the first motif, Local Design, is disputing the claim. It said it came up with it independently.
Meanwhile, the NDP organising committee has decided to stop the use of the first design.
In an e-mail to Mr Chen last Friday, Colonel Goh Si Hou, the chairman for sponsorship, engagement and publicity for this year's NDP, said: "However, given the unresolved complaint that you have against Local's design supplied to us, we will take steps to remove the design from our NDP collaterals."
The free app, called NDP 2013, has been available since May.
Mr Chen claimed the app initially used one of his patterns created in 2008 - the "Singapore Heart Flag".
He said it was used without his knowledge or permission.
He told The New Paper: "At the end of May, I suddenly received messages from friends congratulating me for designing the NDP smartphone app. That was how I realised my design had been used without my knowledge."
But Ms Venus Ng, the account director from Singapore agency Local Design, countered: "There is no infringement of copyright as alleged. "Local (Design) arrived at the NDP app logo design independently, without any reference whatsoever to Mr Chen's designs."
She said that the logo was created sometime in April this year.
"The idea of super-imposing our national flag within a heart draws its inspiration from the current NDP logo, which has a heart as the centrepiece of the logo.
"We decided to build upon the idea and to place our Singapore flag within the heart. The heart-shape was based on a shape from an open online database of vector shapes.
"We are surprised that someone is claiming copyright over the image of the Singapore National Flag. As we understand, the flag cannot be used in any trademark or for any commercial purpose."