ya, i tried, but still not change, may be take some time go for changes...

You can also make css and js adjustments from the appearance tab in the admin panel. These are never overwritten.

Id like to change way emojis suggestions work too. For example if i want to use ":D" in chat i get offered :dagger" (in my instalation). So if i dont want that :dagger: i have to press space to get rid of that suggestion. If i just press ENTER ":D" gets replaced with :dagger:
Turning off that kid of actions would be nice.

Starting with 1.6.0 you can use plugins.fireHook('filter:meta.getMetaTags', { req: req, data: data, defaultTags: defaultTags }, next);

If you want to do it on 1.5.2 you can try the below using the the hook filter:topic.build.

myPluign.onTopicBuild = function (hookData, callback) { hookData.res.locals.metaTags.push({ property: 'tags', content: 'abc, def' }); callback(null, hookData); };