Add ability to make custom styles

As commented in #2, the .SCSS file is available in 2.X version and now it can overwrite as described in https://www.drupal.org/node/2497313 →

thanks for #4.

#5 I don't know how a manually overwrite each time the module gets updated is helping. Or does it trigger on update?

@MrDaleSmith

Don't overwrite directly in the contributed module.
Use the Libraries-override and Libraries-extend features which overwrite/extend contributed modules libraries from your custom theme.

Follow the URL https://www.drupal.org/node/2497313 →

@ravi-kant I'm overriding in my theme's CSS, but how ever you do it I still have to, so that doesn't resolve the actual issue.

@MrDaleSmith

libraries-extend:
  core/tb_megamenu:
    - <your custom theme machine name> / <new library in custom theme>

Follow the URL https://www.drupal.org/node/2497313 →

@ravi-kant I know how to override a library: the issue here is the module is too opinionated about CSS, not that there aren't ways of working around it.

@MrDaleSmith
The TB Megamenu is providing sass files - admin.scss, base.scss, styles.scss.
I will suggest copying base.scss and styles.scss in your theme folder and making necessary changes.
Then compile sass to create a new library in your theme and use libraries-extend to apply the new library.

While new feature development has stalled a little bit here, we do plan to add functions that will easily allow you to select between a TB theme or your styling. Until that happens, @ravi-kant's suggestion of using libraries-extend/copying the source sass files into your theme should suffice.

I really don't know much about how the styling with all the other themes works. So forgive my probably stupid comment here.
But they seem to have similar classes and usually do not add colors.
If (and I don't know if this is the standard drupal case) there are such css and menu elements why do you provide your own and not inherit/use those of themes.
The Drupal MainMenu seems to work in all themes. So it must have elements that are default.
If Megamenu would in inherit colors of the current theme it would solve most of the problems I guess.

@maxilein
I am understanding your problem.
But the new color can be apply easily from custom theme.
Also it depends on current theme work.