Using IGA 2.5.0.
Here is a tips for those who need to make text adjustments in Swedish
and for my future reference.

Trying to change the text "Identity Governance" that is located in the
top, the product name + some strings in Swedish that are not translated

1) I downloaded /opt/netiq/idm/apps/idgov/localization/client-strings.jar
2) Unpacked
3) Found the text I want to change in ArRsrc_sv.properties
4) I noticed that none of the Swedish letters are encoded with
native2ascii, i.e. the Swedish characters were for example "" instead
of \u00e5
5) I had to convert the file from UTF-8 to Windows 1252
6) .\native2ascii.exe ArRsrc_sv-edit.properties ArRsrc_sv.properties
7) Packed up client-strings.jar again
8) Uploaded client-strings.jar to /opt/netiq/idm/apps/tomcat/lib
9) Stopped Tomcat
10) rm -rf /opt/netiq/idm/apps/tomcat/temp/*
11) rm -rf /opt/netiq/idm/apps/tomcat/work/Catalina/*
12) Started Tomcat again