DTS Gas Guru

This update makes the gas tools stricter where it matters and clearer everywhere else. Safer answers • A mix can no longer add up to more than 100%. On Gas Check, Density and every Mixer tab, the O₂ and He fields now stop at whatever the other one leaves: with O₂ at 16, helium stops at 84. • Best Mix never recommends a nitrox leaner than air. Deeper than a nitrox can go at your chosen ppO₂, it now says so, shows air's figures and points you to trimix, with no label or recipe for a gas no fill station can blend. New • Best Mix on open circuit now has the Max Density field that CCR already had. It starts at your Gas Limits setting and applies to that calculation only. • Remove the standard cylinder sizes you never use. In Settings > Cylinders, tap the x on any size to hide it from the table and every cylinder picker; one tap on Reset brings them all back. A cylinder you have already chosen keeps its size. Clearer • Gas Check's hypoxic warning simply tells you the depth you cannot breathe the mix above. • The "depth exceeds the safe MOD" alert now states the ppO₂, your limit and the maximum operating depth, without generic toxicity claims. • On CCR, Gas Check and Best Mix no longer show a hypoxic warning or a loop density for the diluent, since you breathe the loop, not the diluent. • Gas Guru now reads in your language on every screen, including sign-in and the first-run safety notice. • Signing in stays signed in: a server error no longer signs you out of mix sync. • The header wordmark now sits in the centre of the screen. As always: analyse every cylinder before you breathe it.