Ansi escape code for highlight is generated wrong

This is a test pattern layout:

 <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} %highlight{[%level]}{FATAL=red bright, ERROR=red bright, WARN=yellow bright, INFO=magenta bright, DEBUG=green, TRACE=blue bright} [%t] %logger{36} - %msg%n" disableAnsi="false"/>

As you see for TRACE level is `blue bright`. However, this is a generated code:
[TRACE] . As you see we have SGR function with two parameters: 34 is color and 1 is bold.

For example linux terminal will render it this way:

We see, that it is not `bright blue` but `bold blue`. At the same time in manual they speak about different colors:

And if we want bright blue, generated escape code should be `[TRACE]` - see the link to SGR function I provided.