You need to sign in or sign up before continuing.
Especially in chrome (75), it's very hard to see selected text in erp5 xhtml style interface, especially in listboxs. Chrome adds a background color to selected text, but this background is almost same color as ERP5 background.
This uses https://developer.mozilla.org/en-US/docs/Web/CSS/::selection to make it visually clear what is selected.