docs: dual-screen Deck controller and Stop GIFs, Deck mode for everyone in the 0.3.0 notes

docs/releases/0.3.0.md

@@ -6,14 +6,14 @@
 
 **Needs:** Android 9+, Adreno 730 or newer (or 8xx), ~3 GB free for the runtime (+1.1 GB for Desktop & apps).
 
-Updating from 0.2.0 keeps your settings: Deck mode only turns itself on for new installs. From 0.3.0 on, DroidDeck updates itself from the new **Updates** page.
+Updating turns Deck mode on for everyone, once, and Steam moves to the Steam Deck client branch on its next start. If you'd rather not, turn **Steam Deck mode** off in Steam settings and it stays off. From 0.3.0 on, DroidDeck updates itself from the new **Updates** page.
 
 ---
 
 ## Highlights
 
 ### Steam, as on a Steam Deck
-Deck mode is now on for new installs. Steam's performance overlay goes from level 1 to 4 in Quick Access and shows GPU and CPU load, clocks, temperatures, VRAM and battery, even on phones that lock those files away. The game keeps running behind the Quick Access Menu and the Steam menu, as above, and Quick Access shows battery life and time to full.
+Deck mode is now on for everyone. Steam's performance overlay goes from level 1 to 4 in Quick Access and shows GPU and CPU load, clocks, temperatures, VRAM and battery, even on phones that lock those files away. The game keeps running behind the Quick Access Menu and the Steam menu, as above, and Quick Access shows battery life and time to full.
 
 ![Performance overlay at level 4 over Alan Wake's American Nightmare](media/0.3.0/mangohud-level4.jpg)
 
@@ -21,7 +21,7 @@ Deck mode is now on for new installs. Steam's performance overlay goes from leve
 In Steam sessions the client reads your pad as a Steam Deck controller, with a real Quick Access button and your handheld's gyro. Games get Steam Input's virtual pads, so your Steam Input layouts reach them. On a dual-screen handheld, the second screen can be the Deck's back grips and trackpads.
 
 <p>
-<img src="media/0.3.0/deck-controls.jpg" width="40%" alt="Second screen showing both Deck trackpads and the L4, L5, R5 and R4 grips">
+<img src="media/0.3.0/deck-controller.gif" width="60%" alt="Steam's Steam Deck Controller test on the top screen reading the trackpads and clicks played on the second screen's Deck trackpads and grips">
 </p>
 
 ### Faster to Steam, faster in games
@@ -52,7 +52,7 @@ One focus ring slides between controls, settings flood out of the cog the way Pl
 
 <p>
 <img src="media/0.3.0/focus-ring.gif" width="59%" alt="Moving the focus ring with a D-pad, opening Steam settings from the cog and backing out">
-<img src="media/0.3.0/stop-confirm.jpg" width="39%" alt="The Stop confirmation growing out of the Stop button in the session menu">
+<img src="media/0.3.0/stop-session.gif" width="39%" alt="Stopping a session: the confirmation grows out of the Stop button, then the session floods back into Play Steam">
 </p>
 
 ---
@@ -62,7 +62,7 @@ One focus ring slides between controls, settings flood out of the cog the way Pl
 ### Steam
 
 - Steam's startup down from about 31 s to about 6 s, so Offline mode works (@xXJSONDeruloXx, #69)
-- Deck mode on for new installs, always on the Steam Deck client branch so Steam stops offering a downgrade (@xXJSONDeruloXx, #100, #101)
+- Deck mode on for everyone, moved once on update, always on the Steam Deck client branch so Steam stops offering a downgrade (@xXJSONDeruloXx, #100, #101, #141)
 - Steam's performance overlay (MangoHud), levels 1–4, with Adreno GPU, CPU, VRAM and temperature stats, and a switch to turn it off (@xXJSONDeruloXx, #55, #101)
 - The overlay keeps running and filled in under an enforcing SELinux policy, as on retail phones (@xXJSONDeruloXx, #127)
 - Games keep running behind the Quick Access Menu and the Steam menu (@xXJSONDeruloXx, #131)