can't find the location

[Syryus]

Hello,
Could anyone help me, please ?
I can't find the location for the font HDD - SSD file size ( attached image )
And I'l like to make the other font, bold ( Games, Backups )
Thank you in advance

[innuendo]

Here you go :

Explorer & Shell > Explorer > Items View > ItemsView > Details > Property

83163

[Syryus]

Thank you very much, innuendo
I don't understand what am I doing wrong. I replaced the color on the Explorer, navigation pane - left side
Now its grey, but after I reboot the PC, its white, again.
https://postimg.cc/QHxpVg6T
And one more think : all the fonts, in there, at the end, the latest letter doesent look right
Here is an example
https://postimg.cc/ZvnP1BK9
I can make a smaller font number, but it would look very small