Thanks for your answer. It was what I've expected. I have experience with Qt4 since Im making a program, but I'm using Python. Im not sure if I can help with that color values but maybe loading those values from a ".ini" file will work?
Is there any tutorial or guide about the LMMS source code so I can start playing around? 

Another thing that I find hard to understand is how to pull changes to the main project. I'm working on Github and that makes it a lot more easy to work. Have you considered moving the project to Github also?

Thanks again, and Hugs!


2012/10/31 Paul Giblock <drfaygo@gmail.com>
Hello. Are you referring to the piano graphics or the colors used in
the grid?  Currently, Most colors used by LMMS are not exposed to the
*.css file.  This is due to both historic and technical reason.
Historically, most LMMS drawing code and color values were hardcoded.
Qt4 brought css stylesheet support, which we now use for styling of
factory Qt controls such as buttons or textboxes.

The main problem area are custom LMMS controls, such as knobs,
LCD-panels, and editor areas such as the piano-roll and song editor.
Qt does not provided (at least lat time I checked) a simple method of
styling custom controls in the CSS files. At least, it is suboptimal.

Palette changes are a commonly requested feature, but support will
require some development effort.  I do not have the time for this, but
I will gladly get someone started if they are inspired to work on
this.  I can probably dig up some conversation and code snippets from
when I was originally approaching this problem several years ago.

-- Paul

On Wed, Oct 31, 2012 at 1:27 PM, Joshua Wade <qbgeekjtw@gmail.com> wrote:
> http://browse.deviantart.com/?q=lmms#/d29k9c5
>
> Something like that?
>
> I think it might be possible to make new themes without modifying the source
> and recompiling, but you'd have to ask someone else.
>
>
> On Sun, Oct 28, 2012 at 5:01 AM, Emilio Coppola <coppolaemilio@gmail.com>
> wrote:
>>
>> Hello, is it possible to modify the horrible colors of the piano roll by
>> the "style.css" on the theme folder? or it has to be done by the source. I
>> would like to help with the theme and this kind of aspects of the project.
>> I'm a programmer and I have experience with Qt and Python.
>>
>> Hugs!
>>
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>
>
>
> --
> Joshua Wade
> qbgeekjtw@gmail.com
>
>
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