To upload a sub-theme logo, the parent theme logo must first be disabled.

Hello,
At present, the process requires you to disable the parent theme's logo manually. Please visit ../admin/appearance/settings/solo, deactivate the Solo parent theme's logo, and then proceed to upload your desired logo to the sub-theme. I plan to simplify this in the next update, making the process more efficient.

Best wishes,
Alaa

tnx, it works.

with regards

Theo

Hello,
I updated the dev version with the new code.

Best Wishes,
Alaa