Here is a list of all namespace variables with links to the namespace documentation for each variable:

k_steps : cdc::mod_vcard
kBase32BufLen : cdc::mod_2fa
kBootProfileKey : cdc::core
kBootProfileNs : cdc::core
kExpertBottom : cdc::ui
kExpertTop : cdc::ui
KEY_BIT_0 : cdc::hal
KEY_BIT_1 : cdc::hal
KEY_BIT_2 : cdc::hal
KEY_BIT_3 : cdc::hal
KEY_BIT_4 : cdc::hal
KEY_BIT_5 : cdc::hal
KEY_BIT_6 : cdc::hal
KEY_BIT_7 : cdc::hal
KEY_BIT_8 : cdc::hal
KEY_BIT_9 : cdc::hal
KEY_BIT_NO : cdc::hal
KEY_BIT_YES : cdc::hal
KEY_BUFFER_SIZE : cdc::hal
KEY_DOWN : cdc::ui
KEY_MASK_ALL : cdc::hal
KEY_MENU : cdc::ui
KEY_NO : cdc::ui
KEY_SELECT : cdc::ui
KEY_STATE_IDLE : cdc::hal
KEY_STATE_INVALID : cdc::hal
KEY_UP : cdc::ui
KEY_YES : cdc::ui
kFontIdCount : cdc::ui
kGpgRecvFlagVerified : cdc::mod_gpg
kGpgSubs : cdc::mod_gpg
kInvalidListener : cdc::ui
kMaxPartialsBeforeFull : cdc::hal
kModuleSubs : cdc::serial
kNvsSubs : cdc::serial
kPasswordSubs : cdc::mod_password
kPinSubs : cdc::serial
kPowerButtonLongPressMs : cdc::hal
kSchemaVer : cdc::mod_2fa, cdc::mod_password, cdc::mod_vcard
kSlotMap : cdc::core
kSlotMapCount : cdc::core
kStrings : cdc::mod_2fa, cdc::mod_ble_serial, cdc::mod_fido2, cdc::mod_gpg, cdc::mod_password, cdc::mod_sao, cdc::mod_vcard
kSubCommandHeadBufSize : cdc::serial
kToolsFixed : cdc::ui
kTotpSubs : cdc::mod_2fa
kTr01Subs : cdc::serial
kVcardSubs : cdc::mod_vcard
kWifiSubs : cdc::serial