Fix some styling issues and label truncation errors
Fix some styling issues and label truncation errors

Changed font back to sans-serif

chatelak/RMG-Py,nickvandewiele/RMG-Py,pierrelb/RMG-Py,nickvandewiele/RMG-Py,nyee/RMG-Py,nyee/RMG-Py,pierrelb/RMG-Py,chatelak/RMG-Py