This includes 3 different patches,
- Parse global config files. Remove 'Vendor default' option. Fix changes not recognized.
- Set defaults for anti-aliasing using the krdb
- Make slight/rgb the default option
First patch is rebased version of the D12925 by @progwolff, Fixes applied are,
- Rebase patch to new git master
- Don't change defaults to slight/rgb in same commit
Second patch is the follow-up of the D21335 and final fix for the BUG 407754.
Third patch is the fix for bug : 389598