TwinColSelectField bad contrast on Chrome

Steps to reproduce

1.  Using Chrome, go to https://demoauthor.magnolia-cms.com/.magnolia/admincentral#app:security
2.  In tab Groups or Roles there is a twin column field
3. Select one or more groups/roles
   

   Expected results

The selected text can be read.

Actual results

The selected text cannot be read because bad contrast.

Workaround

Customer fixed contrast using:

.v-select-twincol-options:focus option:checked, .v-select-twincol-selections:focus option:checked {
    box-shadow: none !important;
}

Development notes

Contrast issue is only in Chrome, in Firefox and Safary the contrast is good.

Also the labels are misaligned: Groups / Available Groups / Assigned Groups should on one line.