Indoor gyms and theaters will likely reopen in Orange County later this month, if the region’s COVID-19 metrics continue their downward trend. Right now, Orange County falls under the state-mandated purple tier, meaning some of its non-essential businesses, fitness facilities and theatres must remain closed. Restaurants can remain open to facilitate takeout orders, or serve outdoor patrons. To be promoted to the less-restrictive red tier, Orange County must have less than seven COVID-19 cases per 100,000, and a positivity rate of below eight percent. As of March 2, the county’s number was 7.6 cases per 100,000. That’s not the only way to reach the tier; Orange County can accelerate into the category if its health equity quartile is two tiers below its current standing and below five percent. Orange County’s health equity quartile was exactly five percent March 2. State numbers are updated each Tuesday, meaning the next review will …