I tried a few of these and didn’t have any issues running gnome-console or gnome-terminal with bash as the default shell on F36.
I did have some issues on light themes seeing the dim colors but that may have been old eyes.
(Mostly echo’ing and expanding upon what @grumpey already said here.)
It looks like some of your entries are identical or near identical to the default. That said, you also have some entries here that aren’t in the man page (color_list_available_running_kernel, color_list_installed_running_kernel) .
Depending on your terminal emulator and color profile, dim/bold may or may not have much impact. The terminal emulator and color profile are what is ultimately going to interpret how those values are displayed.
Man Page section
color string
Controls if DNF uses colored output on the command line. Possible values: "auto", "never", "always". Default is "auto".
color_list_available_downgrade
color
Color of available packages that are older than installed packages. The option is used during list operations. Default is magenta.
color_list_available_install
color
Color of packages that are available for installation and none of their versions in installed. The option is used during list operations. Default is bold,cyan.
color_list_available_reinstall
color
Color of available packages that are identical to installed versions and are available for reinstalls. Default is bold,underline,green. The option is used during list operations.
color_list_available_upgrade
color
Color of available packages that are newer than installed packages. Default is bold,blue. The option is used during list operations.
color_list_installed_extra
color
Color of installed packages that do not have any version among available packages. The option is used during list operations. Default is bold,red.
color_list_installed_newer
color
Color of installed packages that are newer than any version among available packages. The option is used during list operations. Default is bold,yellow.
color_list_installed_older
color
Color of installed packages that are older than any version among available packages. The option is used during list operations. Default is yellow.
color_list_installed_reinstall
color
Color of installed packages that are among available packages and can be reinstalled. The option is used during list operations. Default is cyan.
color_search_match
color
Color of patterns matched in search output. Default is bold,magenta.
color_update_installed
color
Color of removed packages. Default is red. This option is used during displaying transactions.
color_update_local
color
Color of local packages that are installed from the @commandline repository. This option is used during displaying transactions. Default is green.
color_update_remote
color
Color of packages that are installed/upgraded/downgraded from remote repositories. This option is used during displaying transactions. Default is bold,green.