In our first comments update of 2017, readers are reacting to a squabble that has broken out between artists Anish Kapoor and Stuart Semple over a paint shade dubbed the "world's pinkest pink".

Sink the pink: Kapoor has flaunted his use of a fluorescent pink paint pigment on social media, despite being legally forbidden from using it by Semple, its creator.

The row started after Kapoor acquired exclusive rights to the darkest shade of black ever created.

"Is Kapoor's art so bad that he has to have something that no one else can use in order to create a point of difference?" said Mary.

"Let's hope this will inspire plenty of artists to get their hands on Vantablack," added H-J.

"They sound like some kindergarten kids fighting over who gets to use the crayolas," said a user called Torototoro.

However, one reader came to Kapoor's defence:

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Heated: this terracotta heater uses candles to store and gradually release heat instead of electricity, but commenters are sceptical over whether it could effectively warm a room.

"As good as it sounds, each candle generates only little energy spread over time," wrote a user called Henk. "Candles made from fossil fuel are worse than renewable generated electricity."

"All you are buying is a pretty, expensive and pointless trinket that you 'might' use a couple of times and then repurpose as an ashtray," said Richard.

One reader suggested the heater was part of a fad that won't last the winter:

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Hygged out: readers are debating the current craze for "hygge" – a Danish expression referring to "cosiness" – after columnist Will Wiles called for a rejection of the lifestyle trend in his New Year's resolutions for architecture and design in 2017.

"I did notice a preponderance of cosy, almost 1950s-ish images of socked feet, fires, mugs of cocoa and mulled wine, but I didn't know it had a name. Now I do and I plan to promptly forget it," said a user called Blue.

But one reader felt Wiles' treatment of "hygge" was unfair:

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Inside out: this weathering-steel weekend retreat in a Californian wine valley was a hit with readers – but its sloped metal roof and "off-grid" credentials proved controversial.

"The kitchen and dining spaces must be technically outdoors, as the CA energy code would not allow that roof," said Andrew. "The roof must be great fun in the rain," agreed Guest.

One regular commenter was more concerned about how the house generates its own power:

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