CURRENT_MIN_VERSION = 'v3.1'
CURRENT_MAX_VERSION = 'v3.2'

# Once the Next platform supports challenge versions this can be extended.
ACTIVE_REMOTE_BRANCHES = {'master', 'staging'}
DEFAULT_COMMAND_TIMEOUT = 60 * 60

CONTROLLER_PROTOCOL = 'controller'
PROTOCOLS = {'udp', 'tcp', 'ssh', 'http', 'ws', CONTROLLER_PROTOCOL}
CRP_TYPES = {'docker', 'gce', 'static'}

BUTTON_CONFIG_KEYS = {'text', 'color'}

@@ -389,12 +389,13 @@
 ', '
-color
+hidden
 '%7D%0A

Update frontend-supported BUTTON_CONFIG_KEYS