You can specify special options in your host String for MySQL and MongoDB:
+ssl - enables an ssl connection ( MySQL and MongoDB)
+srv - enables the srv option ( MySQL and MongoDB)
+srvlb - enables the srv loadbalance option ( MySQL)
+srvrp - enables the srv replication option ( MySQL)

When changing database type you can leave unsupported option in the host line as they will simply be ignored. (Going from MySQL to MongoDB without removing the +srvrp option will not cause issues. Keep in mind, though, that MongoDB will NOT connect using the srv option)

Here's a quick example:
You can also add a colon befor your hostname actually starts to make things easier to read

For example:

RGB colours and gradients can be used in configuration files (such as languages/english.yml)
To define an RGB hex color you simply put the and ('&') character, followed by the sharp ('#') character and your hex colour (e.g.: "&#eb345f" for a red colour)
To define a gradient all you need to do is write your text between two xml-like (non-closing) tags containing your start and end colours (e.g.: <#34aeeb>Text with gradient<#9f34eb>")