[Notion-general] Colour coding tabs for applications

[Niels D. <ges...@gm...>]

Hi,

I've been playing around a bit and trying to set up my notion configuration
such that my most used applications (browser, filemanager, etc...) each
have differently coloured tab/titlebar. This would help me to keep track of
what I'm doing.

I supposed that I should add a custom substyle to my look_*.lua, then
identify each new client window when it is created, and use
WFrame.set_grattr to set the appropriate substyle based on that
identification.

However, I'm not sure if I'm on the right track. I can't directly set the
graphical attribute on the client window, but if I do something like this:

ioncore.get_hook("clientwin_mapped_hook"):add(
    function(cwin)
        local f = WFrame.parent(cwin)
        f:set_grattr("differentcolour", "set")
    end
)

... then all the tabs of the frame get that colour scheme!

How would you target a single title bar? Have I overlooked something, or is
this non-trivial?

Thanks!

- Niels