Usage
[edit]To create bullets for the San Diego Metropolitan Transit System (MTS) San Diego Trolley lines:
Note that the template is not case sensitive.
The name of the line can also be included. Any argument for the optional second parameter (|showtext=) will add the text.
{{MTS icon|B}} |
renders as 
|
{{MTS icon|blue|showtext=T}} |
renders as Blue Line
|
etc.