Hello,
1) We don’t have any special options for mobile version optimization. All the available optimization options of our theme you can find under Theme Options > Speed Optimization.
2) Add the below code to change the close button color
.et-mini-content .et-close { color: #555; }
3) Deactivate plugin first and then use the update and activate button https://gyazo.com/f9914e7e8012ee0b35e9db1836fbb11a
Regards
