Is gang evidence relevant and not unduly prejudicial for abuse of discretion?

We review the trial court's decision on whether evidence, including gang evidence, is relevant and not unduly prejudicial for abuse of discretion. (People v. Avitia (2005) 127 Cal.App.4th 185, 193.) "Where, as here, a discretionary power is statutorily vested in the trial court, its exercise of that discretion 'must not be disturbed on appeal except on a showing that the court exercised its discretion in an arbitrary, capricious or patently absurd manner that resulted in a manifest miscarriage of justice. [Citations.]'" (People v. Rodrigues (1994) 8 Cal.4th 1060, 1124-1125.)