Anonymous 'that' is singular and refers back to 'dynamic scheme(s)' You might get away with it, but it should be 'those', not 'that'. I don't see why you need the plural in the first place as 'scheme' seems more applicable to a single theme. Also, you need 'the third variation', not 'the var.
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Anonymous'that' is singular and refers back to 'dynamic scheme(s)'You might get away with it, but it should be 'those', not 'that'. I don't see why you need the plural in the first place as 'scheme' seems more applicable to a single theme.