@pranisht It's in the extensions folder on your computer. Here are the steps to get there:

1. Go to the opera logo in the top left.
2. Go to the help option at the bottom, then go to About Opera
3. Copy the profile path under the paths subheading.
4. Do Windows button+R (I don't know what it is on mac)
5. Paste the profile path and press OK
6. Search for the extensions file
7. This part is tricky because (as of now) none of the extensions have any names. I recommend sorting the themes by recently modified and figuring it out from there. Good luck!

@pranisht It's in the extensions folder on your computer. Here are the steps to get there:

1. Go to the opera logo in the top left.
2. Go to the help option at the bottom, then go to About Opera
3. Copy the profile path under the paths subheading.
4. Do Windows button+R (I don't know what it is on mac)
5. Paste the profile path and press OK
6. Search for the extensions file
7. This part is tricky because (as of now) none of the extensions have any names. I recommend sorting the themes by recently modified and figuring it out from there. Good luck!