I have a question about this ::selection about the v5 version

[Halecoder]

I have mark-selection and active-line plug-ins turned on, and when I double-click, it will not only select all the text, but also the rest of the positions, how do I close this background in the green box?

The demo is as follows, I need to remove this background that is not red

Thank you for your busy reply and much appreciated

[Halecoder]

Ok, looked at the style given by the source code on github and I fixed it

github-markselection

:deep().CodeMirror-selected{
  background-color: rgb(var(--primary-6));
}
:deep().CodeMirror-selectedtext{
  color: rgb(var(--my-bg-color));
}