Which merge string parameters do I use for Themes?

Segmentations were renamed Themes in July 2026. The merge string parameters have now been updated to match, and both the new and the previous parameter names work.

The current parameters

When you select Themes in the Merge Manager, it writes ThemeG= and ThemeNo= for you. For example, selecting a Percentage Score for the theme "Traditional Leader" in the theme group "Leader Archetype" produces:

{RatingScore.Score[ThemeG=1 ThemeNo=1]}

The previous parameters still work

SegG= and SegmentationNo= were the earlier names for these parameters. They continue to work exactly as before.

Your existing report templates do not need to be changed. A template written before the rename will keep producing the same output. You only need the new parameter names if you are writing merge strings by hand and prefer the current wording, or if you are comparing a template against the current documentation.

You can mix both forms in the same template without any problem, although we recommend settling on one for readability.

One parameter that did not change

The metric used to show the difference between two themes is still written Metric=DiffSeg (and Metric=DiffSegPC for the percentage form). There is no DiffTheme. A complete difference merge string therefore mixes both spellings, which is correct:

{RatingScore.Score[ThemeG=1 ThemeNo=1 Metric=DiffSeg Base-ThemeG=1 Base-ThemeNo=3]}

If a chart renders blank

Merge strings are case sensitive, and an unrecognized parameter does not raise an error. It fails silently, producing blank output or ignoring the setting. If a chart is not rendering as expected, compare each parameter against the table in the relevant chart article.

For full details, see July 2026 - Themes (formerly Segmentations) and Merge Strings Library for Reports and Results.