Not enough arguments for capability `setaf` in OpenBSD

I want to change the text colour in a shell. I can use tput to get the correct escape codes. For example,

echo "$(tput setaf 5)My text$(tput sgr0)"

outputs My text in a pink-ish tone. This works fine on Linux, macOS, FreeBSD, NetBSD, and Solaris. On OpenBSD 7.2, however, I get the following error:

tput: not enough arguments (3) for capability `setaf'

According to [the OpenBSD docs of tput](https://man.openbsd.org/tput) , the attribute should be defined in terminfo or termcap. I don't see setaf defined in [the docs for termcap](https://man.openbsd.org/termcap.5) , so I assume tput interprets setaf as defined in [the docs for terminfo](https://man.openbsd.org/terminfo.5) . According to those docs: > To change the current foreground or background color on a Tektronix-type terminal, use **setaf** (set ANSI foreground) and **setab** (set ANSI background) or **setf** (set foreground) and **setb** (set background). These take one parameter, the color number. This conflicts what I've been told by the error message. On the other hand, I can use tput setaf 5 0 0 and, regardless of the last two parameters, the foreground colour is changed to pink-ish. Why does tput require three parameters on OpenBSD, and what do those extra two parameters mean?