Also not sure what is http://omnomirc.www.omnimaga.org/index2.php but it seems very broken in Opera

It's kind of the WIP area Parts are broken, more are in chrome and even more in opera.
Opera doesn't have anything for the calc() function, so a lot of the stuff is probably out-of-line Might be able to do pixel-based offsets but it might not look the same.
https://developer.mozilla.org/en-US/docs/Web/CSS/calc#Browser_compatibility

It's a little broken in Fx as well. I'm just using http://omnomirc.www.omnimaga.org/ in my admin panel. It seems to work better.

Just updated the pastebins again with some fallback stuffs, they should be more opera(and-other-browsers-in-general)-friendly now.  By no means perfect, but stuffs mainly where it should be (some parts are off by a few pixels at most, the worst part by far is the top-right border of the topic box )
Also changed the background colors of the custom parts to the darker post color (copied from forum theme) so it might fit in a bit better? As well as the alternating line highlights.
The red username highlight is a bit darker. /me lines don't have that large gap after the name anymore.

http://darl181.webuda.com/other/messing_with_omnomirc_8.png
Default | V5R

Just updated the pastebins again with some fallback stuffs, they should be more opera(and-other-browsers-in-general)-friendly now.  By no means perfect, but stuffs mainly where it should be (some parts are off by a few pixels at most, the worst part by far is the top-right border of the topic box )
Also changed the background colors of the custom parts to the darker post color (copied from forum theme) so it might fit in a bit better? As well as the alternating line highlights.
The red username highlight is a bit darker. /me lines don't have that large gap after the name anymore.

http://darl181.webuda.com/other/messing_with_omnomirc_8.png
Default | V5R

ha, if i forget it be sure to poke me to add it ^^

and yeah, index2 is a WIP as I noticed that it has a lot more to it than just plainly copying css

Bugs report: The text area where you type text doesn't fill the entire OmnomIRC width in Opera. Also, the CSS doesn't match the site colors when we use Omni v2.5 through v4 or v5 Retro.

For the ~20 other people using the gray theme, here's a quick-fix userstyle for until it adapts to the theme:


table thingy for theme implementation
a few of the themes have the same color for all posts, so I improvised on a few
--

Theme V5 V4 V3 V2.5 V2 V5 Retro

Bg color    #CAE4FF #EBF1F9 #A8A8A8 #EBEAEA #EBEBEB #CACACA

border color #6699FF #DDDDFF #B0B0B0 #EFEFEF #FFFFFF #999999

Omnomirc V2 used the same transparent black color for all the themes - which kind of worked most of the time - but this seems to match better? There's a fix in the works anyway.

Now I'm wondering, what's the current seeing as it isn't V3? 2.5?

Also looking at that tied in-favor-of-same-tab ourl poll..still hoping to see an option relating to that >.>

Thanks for implementing it, it works great

Hope people like it. If something goes wrong with the css, I guess poke me about it when I'm online and I should be able to find out what's wrong. Tho some browsers/fonts might have certain spacings off by a pixel or two..not sure how to remedy that unfortunately