Linux – Change default font GNOME (Fedora 24)

The question linked by @blametheadmin lead me to this answer, which gave me some new ideas, and googling for:

rstudio desktop icon gnome

I found this page, which helped me create a proper desktop file.

For RStudio:

[Desktop Entry]
Type=Application
Encoding=UTF-8
Name=RStudio
Comment=A GUI for R
Exec=/home/rodrigo/Downloads/RStudio/usr/lib/rstudio/bin/rstudio
Icon=/home/rodrigo/Downloads/RStudio/usr/share/icons/hicolor/256x256/apps/rstudio.png
Terminal=false

I saved this file as:

/usr/share/applications/rstudio.desktop

For KolourPaint, I noticed that I already had the alacarte (main menu) software installed. So I just clicked the KolourPaint entry there, and later unclicked. Somehow that alone solved the problem, but I saw no difference between the previous and the present kolourpaint.desktop (strange). But at least digging more now I know a little more about the structure of Gnome icons.

So there are actually a couple of things you need to worry about:

1) Installing same software on all machines. This is fairly easy to do either by cloning via clonezilla or just getting a list of installed packages and having the package manager install a matching set on the other machines. Package names that are architecture dependent may cause issues if you are using different CPU architectures.

2) Any system level configurations that you've changed, created, etc. Apache host configuration, etc. For me, I use the joe editor and it creates an auto backup file named filename~ when I edit filename. So I simply find all files ending in ~, remove the tilde, and make an archive, then extract on the other machine. Works fine, as long as you've got step 1 squared away.

3) Your home directory and whatever customization you make there. Desktop wall paper, auto launch apps, menu items, desktop icons, etc.

The good news is that there are multiple ways of dealing with this. There are configuration management tools, and creative ways of using other tools like git to check in/check out your configuration files, etc. Or you could do it yourself with a script or two.