He continued: "Currently, the flag incorporates elements of England, Scotland, and Ireland but overlooks the distinct identity and heritage of Wales, despite its status as one of the UK’s four nations.
The three were combined in 1606 to represent the nations of England, Ireland and Scotland respectively, meaning it now captures only two of the four modern home nations, as the St Patrick's cross hails from the now Republic of Ireland and is viewed by some as a symbol of British oppression.
Petition author Mr Sleeman has previously shared what a Welsh-inclusive flag could look like, with pictures showing him posing with a red, white, blue and green flag.
Activists have launched a campaign to include Wales on the iconic flag, which incorporates the colours of the St George's, St Patrick's and St Andrew's crosses.
His version would see green stripes included alongside the St Patrick's cross portion of the flag, enmeshing the green half of the nation's signage with the rest of the UK's.
