There are 2 solutions to fix this bug:

1. Change css from table by adding setCellStyleGenerator in ListViewImpl class.
Patch: https://gist.github.com/gjoseph/4abaa7aca7fdd5c7bd81
Of course, we need to change both tree and list configuration for Page, Dam, Resource, Template, Configuration

2. Apply css at LockColumnFormatter

In Lock column, for each locked row, we will add 1 image ("Display: none;" need to be set for this image) and js function onload() for this image.
This js function will find "tr" (parent of image) and add special css class for this "tr" to make grey row

• Actual implementation:* Choose option 2. Because option 1 will change a lot of code and configure for page, dam, ... It is unnecessary. Option 1 maybe will support in magnolia version 5.5