How to create new theme in magento 2 without parent theme delcartion?

Question

What if i don't declare parent theme in theme.xml while creating new theme in magento 2? will the new theme work properly?

Answer 1

Parent theme is necessary in Magento, if you don't want any parent theme, you can use blank theme as your parent theme:

<parent>Magento/blank</parent>

And this wont be an issue, your theme will work properly if you do this.

See dev docs for details

Answer 2

We can create a new theme without depending any parent theme like Magento blank theme vendor/magento/theme-frontend-blank/theme.xml, the difficulty is you need to write all the look and feel changes from the scratch.

My suggestions is use blank theme as a parent theme, if you totally want to change any layout or build the styles from the scratch for the specific layout, use the parent layout override concept.

I hope it helps.