Firefox Night Owl - V2

userChrome.css

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");

:root:-moz-lwtheme-brighttext {
  --chrome-background-color: #424242 !important;
  --chrome-color: #8f8f8f !important;
  --chrome-secondary-background-color: #363636 !important;
  --toolbox-border-bottom-color: #333333 !important;
  --url-and-searchbar-border-color: #333333 !important;
  --focus-ring-box-shadow: #191917 !important;
  --url-and-searchbar-background-color: #363636 !important;
}

/* Remove white flash on tab load */
.browserContainer {
  background-color: #363636 !important;
}

/* Fixing container tab borders */
[data-identity-color="blue"] {
  --identity-tab-color: #7193F7 !important;
  --identity-icon-color: #7193F7 !important;
}
[data-identity-color="green"] {
  --identity-tab-color: #71F78A !important;
  --identity-icon-color: #71F78A !important;
}
[data-identity-color="orange"] {
  --identity-tab-color: #F2DE73 !important;
  --identity-icon-color: #F2DE73 !important;
}
[data-identity-color="pink"] {
  --identity-tab-color: #F771E7 !important;
  --identity-icon-color: #F771E7 !important;
}

/* Make normal density theme bit compact */
:root:not([uidensity=compact]) #back-button {
  padding-top: 0 !important;
  padding-bottom: 0 !important;
}
:root:not([uidensity=compact]) #back-button > .toolbarbutton-icon {
  background-color: unset !important;
  border: none !important;
}

userContent.css

@-moz-document url(about:newtab) {
    .activity-stream {
        background-color: #363636 !important;
    }
    .top-sites-list .top-site-outer > a {
        color: #737373 !important;
    }
    .top-sites-list .top-site-outer .title.pinned span {
        font-size: smaller !important;
    }
    .tile {
      filter: grayscale(42%) !important;
      opacity: .9 !important;
    }
}

Hi, the multi account container toolbar is not visible while the light theme is on
Do you know how to change its color so it shows up while the light theme is on.
Here is the same icon on dark theme: