Steve Howell b3b83f223d minor: Avoid dict lookup for color. ...

The only thing get_color() does is look
up a sub:

    exports.get_color = function (stream_name) {
        const sub = exports.get_sub(stream_name);
        if (sub === undefined) {
            return stream_color.default_color;
        }
        return sub.color;
    };

So if we have a sub already, there's no point
calling the helper.

Obviously, this isn't a huge deal, but it happens
N times during page load.

2019-12-30 09:50:22 -08:00

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