It's interesting that 'dev mode' is a name often used in programs for people who write software. It's like a mode for making changes. Big companies like Apple, Google, and Microsoft have features called 'developer mode' that people often call 'dev mode'.

The name "dev mode" is used a lot. For example, Atlassian used it in their products before Figma got its copyright. Many free software projects also use this name.

Figma told TechCrunch that their special name 'Dev Mode' is only for the shortcut, not the full name 'developer mode'. It's a little like having a special name for 'bug' when you talk about 'debugging'.

Figma wants to keep its name special. So, it has to send letters telling people to stop using it. If Figma does not protect the name, it could become a normal word that anyone can use. Then, they cannot stop people from using it.

Some people online think this word is too common and should not be a trademark. They think Lovable should fight.

Anton Osika, the boss of Lovable, told TechCrunch that his company will not change the name of the feature. Figma asked them to, but they said no.

We'll see if Figma takes further action. Figma is also focused on other matters. On Tuesday, Figma announced it had confidentially filed documents to become a public company. However, if Figma decides to take legal action, an international legal dispute could be expensive for the new Swedish startup, Lovable, which raised 15 million dollars in initial funding in February.

Lovable is a good example of something called "vibe coding." This means you can write what you want, and the product creates it for you, including the computer code. Lovable has a feature called "dev mode" that lets you change the code. This feature started a few weeks ago.

Lovable says it is similar to Figma. On its website, it says designers can use Lovable without hard work like in programs such as Figma. Many new companies are using it.

This is not just a fight about a name. A bigger company is getting ready to fight a smaller company that is new and causing problems. Figma was worth $12.5 billion about a year ago.

Someone from Figma said something like this. They told a website called TechCrunch that Figma has not sent warning letters to other tech companies, like Microsoft. This is because their products are different.

Osika from Lovable is also fighting back. He says Figma should make their product good, not just advertise. He also says Lovable is taking customers from Figma and other design tools made before new AI.

Figma's CEO, Dylan Field, said that vibe coding products are not a big problem. He said this when he talked to Garry Tan last month.

Field said people like vibe coding because it is fast. But you also need to help people finish their projects, not just start them quickly. He said this is a problem for design and code.

Osika also looks ready to compete. He shared Figma's letter on X and used the happy face emoji.