[bmc08gt]

Android text set to FontWeight.Medium in Avenir drew Avenir Next Demi, because PlatformFonts.avenir mapped Medium to the Demi file. A second family, AvenirMedium, existed for the few styles that needed the real Medium face. On iOS, FontBook maps .medium to AvenirNextLTPro-Medium, so every Android site that asked for Medium looked heavier than its iOS counterpart.

This collapses the two into one Avenir family with the iOS (UIKit FontBook) table: Thin through Normal → regular, Medium → avenir_next_medium, SemiBold and up → demi. avenirMedium / AvenirMedium are gone, on Android and on the desktop actual.

Per-site decisions

Each site that set or inherited Medium on Avenir was checked against the matching iOS text.

Kept Medium, now the real Medium face (visible change, matches iOS)

Android site	iOS counterpart
ChatInput.kt:370 composer text and placeholder	ConversationBottomBar.swift:1239, .appTextMessage (16 medium)
E2eeLearnMoreSheet.kt:128 subtitle, :183 bullets	E2eeLearnMoreSheet.swift:52, :83, 15 medium
ReactionBoostSheet.kt:101 "Tap to change"	PaidReactionSheet.swift:74, 12 medium
E2eeFooter.kt:70	E2eeLearnMoreSheet.swift:192, 13 medium
MentionSuggestionList.kt:155 @handle	MentionSuggestionList.swift:120, 14 medium
RequestDeck.kt:607 strip second line	PaymentRequestDeck.swift:682, .appTextCaption (12 medium; Android stays at 14)
MarketCapExplainerRow.kt:71	MarketCapExplainerRow.swift:27, 14 medium
MarketCapExplainerSlider.kt:176 tick labels	MarketCapSlider.swift:129, caption medium
ComposerReplyStrip.kt:209 quote	ComposerReplyStrip.swift:164, 14 medium
MessageLinkCard.kt:445 meta, :449 body	LinkMessageCardView.swift:304, :337, 13 / 15 medium
UndecryptableBubble.kt:228	ChatBubbleView.swift:325, UIKit 15 medium
ChatPhotoBubble.kt:169 "can't be displayed"	ChatMediaCell.swift:128, UIKit 14 medium

Moved to SemiBold (same Demi pixels as before)

Android site	Why
Type.kt displayMedium (40)	iOS appDisplayMedium is 40 bold → Demi. Its users (group send, request pay sheet, market cap value, cash bubble amount) all map to bold on iOS.
FlipcashDesignSystem.kt:143 screenTitle (W500)	iOS nav titles use UIFont.appTitle, 20 bold → Demi (AppDelegate.swift:335).
ReactionBoostCurrencySheet.kt:99, TokenSelectScreen.kt:61 picker balance	iOS CurrencyPickerSheet.swift:85 uses .appTextMedium, 16 bold → Demi.
Type.kt linkSmall	No callers and no iOS counterpart; kept Demi.
MessageNodeDefaults.ContentStyle (W500)	No callers; kept Demi.

No visual change

• textMessage and caption move from AvenirMedium to Avenir; both already set Medium.
• FloatingToast drops its private Medium-only FontFamily and uses textSmall.copy(fontWeight = Medium).
• The cash bubble " each" span from feat(chat): one cash bubble layout for DMs and group sends #1944 no longer borrows caption.fontFamily. It inherits the amount's Avenir with plain FontWeight.Medium. CashBubbleLinesTest now asserts the span has no family of its own and that the amount family's Medium resolves to avenir_next_medium.

Not affected: bare Material3 Text calls with only fontSize/fontWeight (ReactorsSheet, ReactionPickerSheet, ReactionPillRow) draw in the system font, not Avenir. SwitchPreview sets FontFamily.Default and PaymentReceipt is monospace.

Uncertain

• linkSmall and MessageNodeDefaults.ContentStyle have no callers, so there was nothing to compare. They stay on Demi.

Tests

AvenirFamilyTest in ui/theme pins the weight → file table, as an Android host test on resource IDs and a JVM test on the desktop font files. The host test also checks every codeTypography style uses the one family. No module applies the compose screenshot plugin, so there were no screenshot references to re-record.

Left alone

These iOS mismatches sit next to the sites above but are out of scope here:

• MessageLinkCard nameStyle is SemiBold (Demi); iOS SwiftUI .semibold resolves to Medium.
• SwiftUI Font.default maps .semibold to Medium while UIKit maps it to Demi, so iOS isn't consistent with itself on SemiBold.
• The cash bubble caption (MessageBubble.kt:1069) is Medium; iOS ChatCashCardCell uses 12 bold.