VS Code custom syntax highlight - visual-studio-code

Question

I would like to ask for help. I have file with custom format. Each line looks similair to this:
T S 123456 0 0.3 -0.9 -0.2 V paramName
Records are separated by tabs (\t)
Basically, i only want to highlight, lets say each word (column, because there will be a lot of those lines) by diferent style/color - it does not matter. I read a lot about custom grammars for VS Code, but I still does not have any idea, how to do it.
One of my attempts:
{
"$schema": "https://raw.githubusercontent.com/martinring/tmlanguage/master/tmlanguage.json",
"name": "Testlist for DataExpress",
"patterns": [
{
"include": "#records"
},
{
"include": "#keywords"
}
],
"repository": {
"keywords": {
"patterns": [{
"name": "keyword.control.tsv",
"match": "\\b(TSTLST|Program|Device|Comment)\\b"
}]
},
"records":{
"match": "T\tS\t[0-9]+\t[0-9]+\t[0-9]+.[0-9]+\t[+-][0-9]+.[0-9]+\t[+-][0-9]+.[0-9]+\t.*\t.*",
"captures": {
"1": {
"name":"keyword.operator.new"
},
"2": {
"name":"markup.bold"
},
"3": {
"name":"variable"
},
"4": {
"name":"entity.name.class"
}
}
}
},
"scopeName": "source.tsv"
}
Idea behind was, get back list defined by regexp and then each capture format in different way.
I know, thats a silly idea, but as I said, i am out of ideas for now.
Thanks a lot
Edit
From comment:
Correct regexp is :
(T\tS\t)([0-9]+\t[0-9]+)(\t[0-9]+.[0-9]+)(\t[+-][0-9]+.[0-9]+\t[+-][0-9]+.[0-9]+)(\t.*)(\t.*)