Interface color

Znerox · October 22, 2018, 6:36pm

Not exactly a critical issue, but I would like to change the color of each interface (and firewall zone) in luci. The interface element is "div.ifacebox-head". Maybe a dev knows? I think it might have to do something with a variable %=c%.

hnyman · October 22, 2018, 6:58pm

Interfaces follow the firewall zone, which gets its color from the hashed zone name. (It looks first like randomized, but as the random function is seeded with name-based hash, it is not actually random, I think. lan and wan have pre-defined colors.)

github.com

openwrt/luci/blob/master/modules/luci-base/luasrc/model/firewall.lua#L459


end


function zone.add_rule(self, options)
	options = options or { }
	options.src = self:name()


	local s = uci_r:section("firewall", "rule", nil, options)
	return s and rule(s)
end


function zone.get_color(self)
	if self and self:name() == "lan" then
		return "#90f090"
	elseif self and self:name() == "wan" then
		return "#f09090"
	elseif self then
		math.randomseed(tpl.hash(self:name()))


		local r   = math.random(128)
		local g   = math.random(128)
		local min = 0

So, there is no actual config setting of the color for each zone.

Znerox · October 22, 2018, 7:46pm

Thanks for the info! I noticed that the color stay the same when changing the zone/interface name in /etc/config/firewall and network. If it's not too much trouble, do you know where the hashed names are stored, so I can try replacing the hashes with each other, thereby hopefully swapping color between zones?

hnyman · October 22, 2018, 7:50pm

To my knowledge they are not stored anywhere. It is always calculated.
https://github.com/openwrt/luci/search?q=get_color

just look at the source code...

hnyman · October 22, 2018, 7:54pm

Just a crude idea but if you want to tailor the colors, your best bet might be to just slightly editing & testing with zone names trying to achieve roughly the desired effect. Notice how changing the last char changes the color:

Znerox · October 22, 2018, 7:57pm

Hmm, I actually did that exact same search, but it didn't leave me any wiser. It seemed like they had to be stored somewhere, since I changed the name of my lan zone/interface, but it still got the same color.
But editing the zone name does get the job done! thanks again.