Zimlet to style inbox mail list

[hoborg]

Hi,
I'm new to Zimbra and I'm searching for zimlet to style inbox mail list. I know that I can write my own theme, but users use many themes and I don't want to change every of them.

I have an idea to use (write) zimlet which can change the font size, padding and margins, colors of unread mails etc.

If there is no such zimlet where can I read about overriding theme style via javascript.
Thank you for answer

[14519garyo]

Did you ever get anywhere with this? I'd also like to style the inbox mail list to tighten it up (remove excess whitespace, like old 7.x).