Add highlighting

Signed-off-by: Tommy <contact@tommytran.io>

Quality of Life.md

@@ -64,13 +64,27 @@ qubes.Gpg  *  thunderbird  vault  allow
 
 Note that I just use allow here, because the vault VM on a new Fedora 41 already prompts for confirmation, so I don't wanna have to answer yet another prompt from dom0.
 
+### qvm-screenshot-tool
+
+```bash
+sudo qubes-d0m-update zenity
+```
+
+Copy [this file](https://github.com/ben-grande/qubes-qvm-screenshot-tool/blob/master/qvm-screenshot) to `/usr/local/bin` in dom0.
+
+```bash
+sudo chmod +x /usr/local/bin
+```
+
+Set the `PrntSc` button to run `qvm-screenshot` in shortcut settings.
+
 ### Trivial data exfiltration prevention
 
 One trivial way for malicious applications to exfiltrate data from an offline VM is to open a link in a disposable VM with a payload. To prevent this, open the VM settings, go to advanced and set the default disposable template to none.
 
 ### Edge Dark Mode
 
-Go to edge://flags and set "Auto Dark Mode for Web Contents" to "Enable with selective inversion of non-image elements". This reduces flashbangs a lot.
+Go to `edge://flags` and set "Auto Dark Mode for Web Contents" to "Enable with selective inversion of non-image elements". This reduces flashbangs a lot.
 
 ### Bitwarden & Element Flatpak