Hello,
The red color on your screenshot with the custom CSS code indicates that there was an error. We have identified (unclosed } ) and resolved it.
You can disable swatches via settings of element used to show products, for example – https://prnt.sc/HY1AdbF2_XYv , and additionally via Theme Options – https://prnt.sc/T8yvXB4-6Wx2 Limit for lines of product title can be found in the same way – https://prnt.sc/07sIZYlNKrr- https://prnt.sc/qRaXVdkbF0cD
We hope this information is helpful.
Best regards,
8Theme Team