Here is an idea for a reusable default video thumbnail. With the logo skewed to the left so the play button is centered.

OneLove DTube play button video thumbnail - dark mode -1920x1080
Download:
https://images.hive.blog/DQmavqVgaxtEbcFnk8RQbY4GDcNHXi5JLHzgQTQc4oqZx8G/video-thumb-playbutton-1920-dark.jpg

OneLove DTube play button video thumbnail - light mode -1920x1080
Download:
https://images.hive.blog/DQmW6EVZd8uZSrqD6vqoZ4PrEbMSGPRQFZgiVNjdhHvR1xb/video-thumb-playbutton-1920-light.jpg

OneLove DTube play button video thumbnail - transparent for dark mode - 1920x1080
Download:
https://images.hive.blog/DQmeyyi5goPLvTzfdbLpZuiKxbbRfhzoR5xYt49no9cbMyE/video-thumb-playbutton-1920-dark-transparent.png

OneLove DTube play button video thumbnail - transparent for light mode - 1920x1080
Download:
https://images.hive.blog/DQmeV6YgCT9behaudfrAxpvdk3TS4ebaSu5K9LU2t49JoZD/video-thumb-playbutton-1920-light-transparent.png