Gmail – Displaying Messages in Alternating Colors

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Is there a theme or a workaround available to display e-mails in my inbox in alternating colors (e.g. odd and even lines differ in coloring)?

Best Answer

You can use a custom stylesheet (CSS) to do this. Just apply the styles

.zA:nth-child(2n) {
    background-color: /*even color*/ !important;
}
.zA:nth-child(2n+1) {
    background-color: /*odd color*/ !important;
}

with colors of your choice. (The class you need to use may vary — it was y0 for me and zA for the OP.)

(Here are instructions for custom stylesheets in Firefox; other browsers may have other extensions which let you do this.)