Colouring text result from query

[accateo (accat)]

Hi,
I'm trying to color text that is result from a query:

filters
| essql 
  query="SELECT date + interval '2' hour as dateNew, DATEDIFF('minute',date, CURRENT_TIMESTAMP()) as diff FROM device_data_eggy ORDER BY date DESC LIMIT 1"
| mapColumn name="formatted_date" expression={getCell "dateNew" | formatdate format="DD/MM/YY HH:mm"}
| var_set "color" value={if condition={getCell column="diff" | lt 30} then="green" else="red"}
| markdown "{{#each rows}} {{formatted_date}} {{/each}}"
| render css=".canvasRenderEl p{
  font-family: 'Quicksand';
  color: \"" {var "color"} "\"  ;
}"

but I have this error:

[render] > Unknown argument '_' passed to function 'render'

Why?
Thanks

[accateo (accat)]

filters
| essql 
  query="SELECT date + interval '2' hour as dateNew, DATEDIFF('minute',date, CURRENT_TIMESTAMP()) as diff FROM device_data_eggy ORDER BY date DESC LIMIT 1"
| var_set name="color" value={if condition={getCell column="diff" | lt 30} then="green" else="red"}
| mapColumn name="formatted_date" expression={getCell "dateNew" | formatdate format="DD/MM/YY HH:mm"}
| markdown "{{#each rows}} {{formatted_date}} {{/each}}"
| render 
  css={string ".canvasRenderEl p{
  font-family: 'Quicksand';
  color:  " {var name="color"} ";
}"}

The error was the presence of \