This section of the v0.3 design is still accurate:
http://freeorion.org/index.php/V.3_Requ ... rce_MetersQuote:
Focus settings have these effects on max meter values:
* Primary Focus adds + 15 to the selected Max Meter
* Primary Balanced Focus adds +3 to all Max Resource Meters.
* Secondary Specialized Focus adds +5 to the selected Max Meter
* Secondary Balanced Focus adds +1 to all Max Resource Meters.
Some technologies and buildings effectively increase the bonus applied by Primary Focus. See Effects for details.
These "Basic Focus and Universe" meter contributions are set by the values in a data table:
http://freeorion.svn.sourceforge.net/vi ... iew=markupTech, building, special, ship part or hull effects may also add or subtract from max meter values, depending on focus settings.