Flameshot version
0.6.0-9 (Debian)
Describe the bug
When capturing from the screen, most of the buttons are not displaying icons, just round purple buttons.
To Reproduce
Initiate a screen capture.
Expected behavior
The buttons should have icons.
System Information
Pop_OS 19.04 (Ubuntu 19.04 based).

Perhaps I need to install a specific font?
Can you confirm that you already have package libqt5svg5 installed?
That did it! I guess Pop_OS doesn't have that package installed by default, but regular Ubuntu 19.04 does. The icons are now appearing.
Appreciate you guys, had the same issue on Fedora 30.
Solution:
sudo dnf install qt5-qtsvg
Then reboot or killall flameshot
I'm facing the same problem in Arch Linux. I have installed the package qt5-svg. But the icons still don't appear.
@saurabh000345 the qt5-svg package should be a hard dependency for the flameshot package. May I ask how did you installed flameshot without qt5-svg on Arch Linux? Also have you tried to kill and restart flameshot after (somehow) installed qt5-svg ?
@farseerfc I tried the AUR package flameshot and also flameshot-git. I later discovered a pacman package too. But all of them gave me the same result.Screenshots are taken fine, the freehand drawing tool works fine, but the buttons don't have any icon. That led me to this thread which suggested that I should install libqt5svg and I guess qt5-svg is the package for Arch systems. And yeah as you said that qt5-svg is a hard-dependency, the package was already installed. I would still try updating the system and giving you a feedback soon. But if you have any other suggestions, do help me with the issue.
@farseerfc Yeah, as expected, the update doesn't change a thing.
EDIT: Hey a system reboot solved the issue! I had tried logging out and back in before though but yeah the reboot did the trick! Thanks!
Same issue in Kubuntu 14.04:
flameshot version
v0.6.0 flameshot_0.6.0_x86_64.AppImage
libqt5svg5 version
libqt5svg5:amd64 5.2.1-1
Most helpful comment
Can you confirm that you already have package libqt5svg5 installed?