diff --git a/artifact_card.go b/artifact_card.go
index 478888f..1bf76d4 100644
--- a/artifact_card.go
+++ b/artifact_card.go
@@ -10,7 +10,7 @@ import (
 	"mujicaui/theme"
 )
 
-// ArtifactKind is what an artifact holds. The zero value is ArtifactCode.
+// ArtifactKind is what an artifact holds; zero is ArtifactCode.
 type ArtifactKind int
 
 const (
@@ -23,7 +23,7 @@ const (
 type ArtifactCardOptions struct {
 	Kind  ArtifactKind
 	Title string
-	// Detail is a short fact, such as "Go · 120 lines".
+	// Detail is a short fact, such as "Go, 120 lines".
 	Detail string
 	// Streaming shows the artifact is still being written.
 	Streaming bool
@@ -34,7 +34,7 @@ var artifactKinds = [3]struct{ icon, name string }{
 	{"file", "artifact_card.code"}, {"file-text", "artifact_card.document"}, {"layout-grid", "artifact_card.web"},
 }
 
-// ArtifactCard stands for an artifact inside a message; a click or Enter asks to open the artifact panel.
+// ArtifactCard stands for an artifact; activating asks to open it.
 func ArtifactCard(c *ui.Context, opts ArtifactCardOptions) ChoiceResult {
 	if opts.Title == "" {
 		panic("mujica: ArtifactCard needs a Title")
diff --git a/capability_cards.go b/capability_cards.go
index da12989..fb977cf 100644
--- a/capability_cards.go
+++ b/capability_cards.go
@@ -9,7 +9,7 @@ import (
 	"mujicaui/theme"
 )
 
-// CapabilityCard explains one thing the assistant can do, with example prompts.
+// CapabilityCard explains one assistant capability with example prompts.
 type CapabilityCard struct {
 	Title, Description string
 	Icon               *ui.SVG
@@ -30,7 +30,7 @@ type CapabilityCardsView struct {
 	Example string
 }
 
-// CapabilityCards shows what the assistant can do; clicking an example hands it to the caller.
+// CapabilityCards shows capabilities; a clicked example goes to the caller.
 func CapabilityCards(c *ui.Context, cards []CapabilityCard, opts CapabilityCardsOptions) CapabilityCardsView {
 	if opts.Columns < 0 {
 		panic("mujica: CapabilityCards Columns is negative")
@@ -76,7 +76,7 @@ func CapabilityCards(c *ui.Context, cards []CapabilityCard, opts CapabilityCards
 	return v
 }
 
-// capabilityExample is a quoted example prompt button; it reports a click.
+// capabilityExample is a quoted example button reporting a click.
 func capabilityExample(c *ui.Context, k theme.Tokens, text string) bool {
 	d := Density(c)
 	b := ui.ButtonBase(c).MinHeight(d.ControlHeight()).Padding(d.Unit(), d.Unit()*3).Justify(ui.Start).
diff --git a/chat_empty_state.go b/chat_empty_state.go
index 38628f9..a386f0a 100644
--- a/chat_empty_state.go
+++ b/chat_empty_state.go
@@ -8,7 +8,7 @@ import (
 	"mujicaui/icons"
 )
 
-// ChatEmptyKind is why a chat view is empty. The zero value is ChatEmptyNew.
+// ChatEmptyKind is why a chat is empty; zero is ChatEmptyNew.
 type ChatEmptyKind int
 
 const (
@@ -20,18 +20,18 @@ const (
 	ChatEmptyOffline
 )
 
-// ChatEmptyStateOptions configure a ChatEmptyState; empty texts use the kind's built-in copy.
+// ChatEmptyStateOptions configure a ChatEmptyState; empty texts use built-in copy.
 type ChatEmptyStateOptions struct {
 	Kind ChatEmptyKind
 	// Query, for ChatEmptyNoResults, is named in the description.
 	Query       string
 	Title       string
 	Description string
-	// Action replaces the kind's button text: Start, Clear search or Retry.
+	// Action replaces the kind's built-in button text.
 	Action string
 }
 
-// ChatEmptyState explains an empty chat (new, no results, offline) and offers the next step.
+// ChatEmptyState explains an empty chat and offers the next step.
 func ChatEmptyState(c *ui.Context, opts ChatEmptyStateOptions) EmptyStateResult {
 	switch opts.Kind {
 	case ChatEmptyNew:
diff --git a/conversation_export.go b/conversation_export.go
index e9c6f40..3acf073 100644
--- a/conversation_export.go
+++ b/conversation_export.go
@@ -13,7 +13,7 @@ import (
 	"mujicaui/theme"
 )
 
-// ExportFormat is the text form of an export. The zero value is ExportMarkdown.
+// ExportFormat is an export's text form; zero is ExportMarkdown.
 type ExportFormat int
 
 const (
@@ -22,7 +22,7 @@ const (
 	ExportText
 )
 
-// ExportRange is which messages an export holds. The zero value is ExportAll.
+// ExportRange is which messages an export holds; zero is ExportAll.
 type ExportRange int
 
 const (
@@ -35,7 +35,7 @@ const (
 
 var exportRoles = map[SessionRole]string{SessionUser: "user", SessionAssistant: "assistant", SessionSystem: "system"}
 
-// ExportConversation writes messages as Markdown, JSON or plain text; it does not parse their text.
+// ExportConversation writes messages as Markdown, JSON or plain text.
 func ExportConversation(title string, messages []SessionMessage, format ExportFormat) string {
 	var b strings.Builder
 	switch format {
@@ -145,13 +145,13 @@ type ConversationExportOptions struct {
 // ConversationExportView is a built ConversationExport and the export asked for.
 type ConversationExportView struct {
 	Element *ui.Element
-	// Exported reports Content is ready for the caller to write, as Format.
+	// Exported reports Content is ready for the caller to write.
 	Exported bool
 	Content  string
 	Format   ExportFormat
 }
 
-// ConversationExport picks a format and range, previews the result and hands the text to the caller to save.
+// ConversationExport picks format and range, previews, and hands over text.
 func ConversationExport(c *ui.Context, s *ConversationExportState, messages []SessionMessage, opts ConversationExportOptions) ConversationExportView {
 	if s == nil || opts.Title == "" {
 		panic("mujica: ConversationExport needs a state and a Title")
diff --git a/conversation_item.go b/conversation_item.go
index 9d04be3..2846c97 100644
--- a/conversation_item.go
+++ b/conversation_item.go
@@ -14,21 +14,21 @@ import (
 
 // ConversationItemOptions configure a ConversationItem.
 type ConversationItemOptions struct {
-	// Today decides the time stamp's form; zero uses the window clock.
+	// Today decides the time stamp; zero uses the clock.
 	Today    Date
 	Selected bool
 	Disabled bool
-	// Draggable lets the row be dragged onto a ProjectList as a ConversationDrag.
+	// Draggable lets the row be dropped on a ProjectList.
 	Draggable bool
 }
 
 // ConversationDrag is the value a dragged conversation carries.
 type ConversationDrag struct{ ID string }
 
-// ConversationItemView is a built ConversationItem and what the user asked for this frame.
+// ConversationItemView is a built ConversationItem and its requests.
 type ConversationItemView struct {
 	Element *ui.Element
-	// Opened, Deleted, Exported and PinToggled are requests for the caller to carry out.
+	// Opened, Deleted, Exported and PinToggled are requests for the caller.
 	Opened, Deleted, Exported, PinToggled bool
 	// Renamed reports a confirmed new title, already in conv.Title.
 	Renamed bool
@@ -41,7 +41,7 @@ type conversationItemState struct {
 
 type conversationItemKey struct{}
 
-// ConversationItem is a conversation row: title, time, and a menu to rename in place, pin, export or delete.
+// ConversationItem is a conversation row with rename, pin, export, delete.
 func ConversationItem(c *ui.Context, conv *ChatConversation, opts ConversationItemOptions) ConversationItemView {
 	if conv == nil || conv.ID == "" {
 		panic("mujica: ConversationItem needs a conversation with an ID")
@@ -118,7 +118,7 @@ func ConversationItem(c *ui.Context, conv *ChatConversation, opts ConversationIt
 	return v
 }
 
-// conversationItemEditor is the in-place title field: Enter keeps a non-blank title, Escape cancels.
+// conversationItemEditor edits the title in place; Escape cancels.
 func conversationItemEditor(c *ui.Context, k theme.Tokens, conv *ChatConversation, st *conversationItemState, v *ConversationItemView) {
 	d := Density(c)
 	in := ui.TextInputBase(c, &st.draft).Grow(1).MinHeight(d.ControlHeight()-4).Padding(0, d.Unit()*2).
@@ -142,7 +142,7 @@ func conversationItemEditor(c *ui.Context, k theme.Tokens, conv *ChatConversatio
 	}
 }
 
-// conversationItemMenu is a borderless ellipsis button opening the menu build fills.
+// conversationItemMenu is a borderless ellipsis button opening a menu.
 func conversationItemMenu(c *ui.Context, label string, build func(m *PopupMenu)) *ui.Element {
 	b := iconAction(c, icons.Must("ellipsis"), label).Role(ui.RoleMenuButton).Shrink(0)
 	open := ui.Local(b, conversationItemKey{}, func() bool { return false })
diff --git a/conversation_list.go b/conversation_list.go
index f2d1a0d..9700a1b 100644
--- a/conversation_list.go
+++ b/conversation_list.go
@@ -37,7 +37,7 @@ type ConversationListState struct {
 	plan     conversationListPlan
 }
 
-// conversationListPlan is the grouped rows, rebuilt only when the data or day changes.
+// conversationListPlan holds grouped rows, rebuilt on new data or day.
 type conversationListPlan struct {
 	src   []ChatConversation
 	day   Date
@@ -45,7 +45,7 @@ type conversationListPlan struct {
 	built bool
 }
 
-// conversationListRow is group header g (item < 0) or an index into the items.
+// conversationListRow is a header (item < 0) or item index.
 type conversationListRow struct {
 	group, item int
 }
@@ -60,10 +60,10 @@ type ConversationListView struct {
 // Changed reports a newly chosen conversation, in State.Selected.
 func (v ConversationListView) Changed() bool { return v.changed }
 
-// Submitted reports Enter or a double click on the chosen conversation.
+// Submitted reports Enter or a double click on the choice.
 func (v ConversationListView) Submitted() bool { return v.submitted }
 
-// ConversationList groups conversations into pinned, today, yesterday, past 7 days and older, building only rows in view.
+// ConversationList groups conversations by recency, building only visible rows.
 func ConversationList(c *ui.Context, s *ConversationListState, items []ChatConversation, opts ConversationListOptions, row func(conv ChatConversation)) ConversationListView {
 	if s == nil {
 		panic("mujica: ConversationList needs a state")
@@ -181,7 +181,7 @@ var conversationListGroups = [5]string{
 	"conversation_list.week", "conversation_list.older",
 }
 
-// conversationListGroup is the group index of conv: pinned, today, yesterday, 7 days, older.
+// conversationListGroup returns the recency group index of conv.
 func conversationListGroup(conv ChatConversation, today Date) int {
 	day := DateOf(conv.Updated)
 	switch {
diff --git a/conversation_search.go b/conversation_search.go
index 44bc501..f711f30 100644
--- a/conversation_search.go
+++ b/conversation_search.go
@@ -20,9 +20,9 @@ type ConversationSearchHit struct {
 
 // ConversationSearchOptions configure a ConversationSearch.
 type ConversationSearchOptions struct {
-	// Loading shows the caller's search for the query is under way.
+	// Loading shows the caller's search is under way.
 	Loading bool
-	// Error is the caller's failed search; it shows with a retry button.
+	// Error describes a failed search, shown with a retry button.
 	Error       string
 	Placeholder string
 	Label       string
@@ -32,9 +32,9 @@ type ConversationSearchOptions struct {
 // ConversationSearchView is a built ConversationSearch and this frame's events.
 type ConversationSearchView struct {
 	Element *ui.Element
-	// QueryChanged asks the caller to search again for the new query.
+	// QueryChanged asks the caller to search for the new query.
 	QueryChanged bool
-	// Chosen is the hit opened by a click or Enter, empty for none.
+	// Chosen is the hit opened this frame, or empty.
 	Chosen string
 	Retry  bool
 }
@@ -47,7 +47,7 @@ type conversationSearchState struct {
 
 type conversationSearchKey struct{}
 
-// ConversationSearch searches titles and content; the caller supplies hits for the query and the matches are highlighted.
+// ConversationSearch shows caller-supplied hits for a query, highlighting matches.
 func ConversationSearch(c *ui.Context, query *string, hits []ConversationSearchHit, opts ConversationSearchOptions) ConversationSearchView {
 	if query == nil {
 		panic("mujica: ConversationSearch needs a query")
@@ -97,7 +97,7 @@ func conversationSearchList(c *ui.Context, s *conversationSearchState, q string,
 	s.rows.Key = func(i int) any { return hits[i].ID }
 	s.rows.Label = func(i int) string { return hits[i].Title }
 	s.rows.Selected = &s.cursor
-	// Rows have one height, so the list can size itself before measuring them.
+	// Rows share one height, so the list sizes itself early.
 	rowH := d.ControlHeight() + FontSize(c, theme.CaptionSize)*theme.LineHeight + 2
 	restore := dataSelectTheme(c, 0)
 	list := ui.List(c, &s.rows, len(hits), func(i int) {
@@ -134,7 +134,7 @@ func conversationSearchList(c *ui.Context, s *conversationSearchState, q string,
 	return chosen
 }
 
-// conversationSearchSpans splits text into spans, marking each case-insensitive match of q.
+// conversationSearchSpans marks each case-insensitive match of q in text.
 func conversationSearchSpans(text, q string, k theme.Tokens) []ui.Span {
 	r := []rune(text)
 	var spans []ui.Span
@@ -152,7 +152,7 @@ func conversationSearchSpans(text, q string, k theme.Tokens) []ui.Span {
 	return spans
 }
 
-// conversationSearchMatches returns rune ranges of case-insensitive matches of q in text.
+// conversationSearchMatches returns rune ranges where q matches, ignoring case.
 func conversationSearchMatches(text, q string) [][2]int {
 	t, p := []rune(text), []rune(q)
 	if len(p) == 0 {
diff --git a/cost_estimator.go b/cost_estimator.go
index 553aa80..b70e411 100644
--- a/cost_estimator.go
+++ b/cost_estimator.go
@@ -7,11 +7,10 @@ import (
 
 	"github.com/egoist/mygo/ui"
 
-	"mujicaui/internal"
 	"mujicaui/theme"
 )
 
-// CostEstimatorOptions configure a CostEstimator. Prices are per million tokens, from the caller.
+// CostEstimatorOptions configure a CostEstimator; prices are per million tokens.
 type CostEstimatorOptions struct {
 	InputTokens, OutputTokens int
 	InputPrice, OutputPrice   float64
@@ -21,7 +20,7 @@ type CostEstimatorOptions struct {
 	Digits int
 }
 
-// CostEstimate is the cost of the input, the output and both.
+// CostEstimate is the input, output and total cost.
 type CostEstimate struct{ Input, Output, Total float64 }
 
 // EstimateCost prices token counts at per-million rates.
@@ -31,7 +30,7 @@ func EstimateCost(inputTokens, outputTokens int, inputPrice, outputPrice float64
 	return CostEstimate{in, out, in + out}
 }
 
-// CostEstimator shows input and output tokens and their estimated cost at the caller's prices.
+// CostEstimator shows token counts and cost at caller prices.
 func CostEstimator(c *ui.Context, opts CostEstimatorOptions) *ui.Element {
 	if opts.InputTokens < 0 || opts.OutputTokens < 0 {
 		panic("mujica: CostEstimator token counts must not be negative")
@@ -76,9 +75,7 @@ func CostEstimator(c *ui.Context, opts CostEstimatorOptions) *ui.Element {
 		cell(msg(c, "cost_estimator.output"), k.Text, false)
 		cell(strconv.Itoa(opts.OutputTokens), k.Text, true)
 		cell(money(est.Output), k.Text, true)
-		ui.Box(c).ColumnSpan(3).Height(9).Draw(func(p *ui.Painter, r ui.Rect) {
-			internal.Rule(p, r.X, r.X+r.W, r.Y+r.H/2, k.Ornament)
-		})
+		ui.Box(c).ColumnSpan(3).Height(theme.BorderWidth).MarginY(d.Unit()).Background(k.Ornament)
 		ui.Text(c, msg(c, "cost_estimator.total")).Font(theme.SerifFont).TextColor(k.Text)
 		cell(strconv.Itoa(opts.InputTokens+opts.OutputTokens), k.Text, true)
 		ui.Text(c, money(est.Total)).Bold().TextColor(k.AccentText).JustifySelf(ui.End).FontFeatures("tnum")
diff --git a/date_separator.go b/date_separator.go
index 1d73c87..7e03af2 100644
--- a/date_separator.go
+++ b/date_separator.go
@@ -16,7 +16,7 @@ type DateSeparatorOptions struct {
 	Today Date
 }
 
-// DateSeparator marks where a day's messages begin: Today, Yesterday, or the full date in the window's language.
+// DateSeparator marks where a day's messages begin, localized.
 func DateSeparator(c *ui.Context, day Date, opts DateSeparatorOptions) *ui.Element {
 	if !day.Valid() {
 		panic("mujica: DateSeparator needs a valid date")
@@ -30,9 +30,7 @@ func DateSeparator(c *ui.Context, day Date, opts DateSeparatorOptions) *ui.Eleme
 	label := dateSeparatorLabel(c, day, today)
 	row := ui.Row(c).FillWidth().Gap(u*3).AlignItems(ui.Center).Padding(u*2, 0).Role(ui.RoleText).Label(label)
 	line := func() {
-		ui.Box(c).Grow(1).Height(9).Draw(func(p *ui.Painter, r ui.Rect) {
-			internal.Rule(p, r.X, r.X+r.W, r.Y+r.H/2, k.Border)
-		})
+		ui.Box(c).Grow(1).Height(theme.BorderWidth).Background(k.Border)
 	}
 	row.Children(func() {
 		line()
@@ -59,7 +57,7 @@ func dateSeparatorLabel(c *ui.Context, day, today Date) string {
 		msg(c, fmt.Sprintf("calendar.month_%d", day.Month)), day.Day, day.Year)
 }
 
-// dateSeparatorWhen is a short time stamp: the clock today, else the relative day or date.
+// dateSeparatorWhen is a short stamp: time, day or date.
 func dateSeparatorWhen(c *ui.Context, t time.Time, today Date) string {
 	day := DateOf(t)
 	if day == today {
diff --git a/feedback_form.go b/feedback_form.go
index 4edcd75..0b7e0b5 100644
--- a/feedback_form.go
+++ b/feedback_form.go
@@ -10,7 +10,7 @@ import (
 	"mujicaui/theme"
 )
 
-// FeedbackRating is the thumb the user gave. The zero value is FeedbackUp.
+// FeedbackRating is the thumb given; zero is FeedbackUp.
 type FeedbackRating int
 
 const (
@@ -18,7 +18,7 @@ const (
 	FeedbackDown
 )
 
-// FeedbackValue is what the user wrote: chosen reasons and a comment.
+// FeedbackValue is the chosen reasons and a comment.
 type FeedbackValue struct {
 	Reasons []string
 	Comment string
@@ -29,7 +29,7 @@ type FeedbackFormOptions struct {
 	Rating FeedbackRating
 	// Reasons replaces the built-in reasons for the rating.
 	Reasons []string
-	// Submitting shows the caller sending the feedback and blocks the form.
+	// Submitting shows the caller sending; it blocks the form.
 	Submitting bool
 	Disabled   bool
 }
@@ -45,7 +45,7 @@ var feedbackReasons = [2][]string{
 	{"feedback_form.down.wrong", "feedback_form.down.unhelpful", "feedback_form.down.unsafe", "feedback_form.down.style"},
 }
 
-// FeedbackForm asks why after a thumbs up or down: reason chips and a comment, then Submit or Cancel.
+// FeedbackForm asks for reasons and a comment after a rating.
 func FeedbackForm(c *ui.Context, value *FeedbackValue, opts FeedbackFormOptions) FeedbackFormView {
 	if value == nil {
 		panic("mujica: FeedbackForm needs a value")
diff --git a/project_knowledge_panel.go b/project_knowledge_panel.go
index 8c9208b..4a2cce1 100644
--- a/project_knowledge_panel.go
+++ b/project_knowledge_panel.go
@@ -11,7 +11,7 @@ import (
 	"mujicaui/theme"
 )
 
-// KnowledgeFile is a file in a project's knowledge, sized in tokens by the caller.
+// KnowledgeFile is a project knowledge file, sized in tokens.
 type KnowledgeFile struct {
 	ID, Name string
 	Tokens   int
@@ -26,16 +26,16 @@ type ProjectKnowledgePanelOptions struct {
 	Disabled bool
 }
 
-// ProjectKnowledgePanelView is a built panel and what the user asked for.
+// ProjectKnowledgePanelView is a built panel and its requests.
 type ProjectKnowledgePanelView struct {
 	Element *ui.Element
 	// Add asks the caller to pick files to add.
 	Add bool
-	// Removed is the ID of a file to remove, empty for none.
+	// Removed is the ID of a file to remove.
 	Removed string
 }
 
-// ProjectKnowledgePanel lists a project's knowledge files with add, remove and how full it is.
+// ProjectKnowledgePanel lists knowledge files with add, remove and usage.
 func ProjectKnowledgePanel(c *ui.Context, files []KnowledgeFile, opts ProjectKnowledgePanelOptions) ProjectKnowledgePanelView {
 	if opts.Capacity <= 0 {
 		panic("mujica: ProjectKnowledgePanel needs a positive Capacity")
@@ -90,7 +90,7 @@ func ProjectKnowledgePanel(c *ui.Context, files []KnowledgeFile, opts ProjectKno
 	return v
 }
 
-// projectKnowledgeMeter shows used of capacity; near and over the limit add a word and an icon, not only color.
+// projectKnowledgeMeter shows usage; limits get words and icons.
 func projectKnowledgeMeter(c *ui.Context, k theme.Tokens, used, capacity int) {
 	d := Density(c)
 	frac := float64(used) / float64(capacity)
diff --git a/project_list.go b/project_list.go
index 4c21553..6c73018 100644
--- a/project_list.go
+++ b/project_list.go
@@ -12,7 +12,7 @@ import (
 	"mujicaui/theme"
 )
 
-// ChatProject is a project that holds conversations; Folder groups projects, empty for none.
+// ChatProject holds conversations; Folder groups projects, empty for none.
 type ChatProject struct {
 	ID, Name, Folder string
 }
@@ -23,7 +23,7 @@ type ProjectListOptions struct {
 	Disabled bool
 }
 
-// ProjectListState is the chosen project and which folders and projects are open.
+// ProjectListState is the chosen project and open folders and projects.
 type ProjectListState struct {
 	// Selected is the chosen project's ID; empty for none.
 	Selected string
@@ -38,12 +38,12 @@ type ProjectListView struct {
 	Changed bool
 	// Opened is a conversation the user opened, empty for none.
 	Opened string
-	// Moved asks the caller to move conversation MoveID into project MoveTo.
+	// Moved asks the caller to move MoveID into MoveTo.
 	Moved          bool
 	MoveID, MoveTo string
 }
 
-// ProjectList shows folders of projects and their conversations; drop a ConversationDrag on a project, or use Move to, to file it.
+// ProjectList shows project folders and conversations; drops move them.
 func ProjectList(c *ui.Context, s *ProjectListState, projects []ChatProject, conversations func(projectID string) []ChatConversation, opts ProjectListOptions) ProjectListView {
 	if s == nil || conversations == nil {
 		panic("mujica: ProjectList needs a state and conversations")
@@ -91,7 +91,7 @@ func ProjectList(c *ui.Context, s *ProjectListState, projects []ChatProject, con
 	return v
 }
 
-// projectListFolder is a folder heading on a CollapsibleBase trigger, which reports expanded.
+// projectListFolder is a folder heading on a CollapsibleBase trigger.
 func projectListFolder(c *ui.Context, title string, open *bool) *ui.Element {
 	k := Tokens(c)
 	d := Density(c)
diff --git a/prompt_library.go b/prompt_library.go
index 827f12c..738566e 100644
--- a/prompt_library.go
+++ b/prompt_library.go
@@ -13,7 +13,7 @@ import (
 	"mujicaui/theme"
 )
 
-// PromptTemplate is a reusable prompt; {{name}} in Body is a variable to fill before inserting.
+// PromptTemplate is a reusable prompt; {{name}} marks a variable.
 type PromptTemplate struct {
 	ID, Category, Title, Body string
 }
@@ -24,7 +24,7 @@ type PromptLibraryOptions struct {
 	Disabled bool
 }
 
-// PromptLibraryState is the library's category, search, chosen template and variable values.
+// PromptLibraryState holds category, query, chosen template and variable values.
 type PromptLibraryState struct {
 	// Category filters templates; empty shows all.
 	Category string
@@ -34,7 +34,7 @@ type PromptLibraryState struct {
 	shown    promptLibraryShown
 }
 
-// promptLibraryShown caches the filtered templates until the data, query or category changes.
+// promptLibraryShown caches filtered templates until data, query or category change.
 type promptLibraryShown struct {
 	src             []PromptTemplate
 	query, category string
@@ -43,10 +43,10 @@ type promptLibraryShown struct {
 	built           bool
 }
 
-// PromptLibraryView is a built PromptLibrary and the text inserted this frame.
+// PromptLibraryView is a built PromptLibrary and inserted text.
 type PromptLibraryView struct {
 	Element *ui.Element
-	// Inserted is the chosen template with its variables filled, empty for none.
+	// Inserted is the filled template, or empty.
 	Inserted string
 }
 
@@ -70,7 +70,7 @@ func PromptLibraryFill(body string, values map[string]string) string {
 	})
 }
 
-// PromptLibrary browses templates by category and search, previews one, fills its variables and inserts it.
+// PromptLibrary browses, previews, fills and inserts prompt templates.
 func PromptLibrary(c *ui.Context, s *PromptLibraryState, templates []PromptTemplate, opts PromptLibraryOptions) PromptLibraryView {
 	if s == nil {
 		panic("mujica: PromptLibrary needs a state")
@@ -152,7 +152,7 @@ func promptLibraryCategory(c *ui.Context, k theme.Tokens, s *PromptLibraryState,
 	}
 }
 
-// selectableRow is a focusable row chosen by click, Enter or Space, marked with Selection and a diamond.
+// selectableRow is a focusable row marked chosen with a diamond.
 func selectableRow(c *ui.Context, k theme.Tokens, key, label string, chosen bool) bool {
 	d := Density(c)
 	b := ui.ButtonBase(c).Key(key).MinHeight(d.ControlHeight()).Padding(0, d.Unit()*2).Gap(d.Unit() * 2).Justify(ui.Start).
@@ -176,7 +176,7 @@ func selectableRow(c *ui.Context, k theme.Tokens, key, label string, chosen bool
 	return b.Clicked() && !b.IsDisabled()
 }
 
-// promptLibraryPreview shows the filled body, a field per variable, and Insert once all are filled.
+// promptLibraryPreview shows the body, variable fields and Insert.
 func promptLibraryPreview(c *ui.Context, k theme.Tokens, s *PromptLibraryState, t PromptTemplate, disabled bool) string {
 	d := Density(c)
 	vars := PromptLibraryVariables(t.Body)
diff --git a/regenerate_menu.go b/regenerate_menu.go
index b224406..95fe6c4 100644
--- a/regenerate_menu.go
+++ b/regenerate_menu.go
@@ -29,7 +29,7 @@ type RegenerateChoice struct {
 
 // RegenerateMenuOptions configure a RegenerateMenu.
 type RegenerateMenuOptions struct {
-	// Models lists models to retry with; Current is marked and left out.
+	// Models lists models to retry with; Current is left out.
 	Models  []string
 	Current string
 	// Variants replaces the built-in Longer, Shorter, Simpler and More detailed.
@@ -37,14 +37,14 @@ type RegenerateMenuOptions struct {
 	Disabled bool
 }
 
-// RegenerateMenuView is a built menu and the retry chosen this frame.
+// RegenerateMenuView is a built menu and the chosen retry.
 type RegenerateMenuView struct {
 	Element *ui.Element
 	Chosen  bool
 	Choice  RegenerateChoice
 }
 
-// RegenerateMenu offers regenerate, retry with another model, and variants such as longer or shorter.
+// RegenerateMenu offers retry, another model, and rewrite variants.
 func RegenerateMenu(c *ui.Context, opts RegenerateMenuOptions) RegenerateMenuView {
 	variants := opts.Variants
 	if variants == nil {
diff --git a/shared_conversation_view.go b/shared_conversation_view.go
index 00676df..cda049f 100644
--- a/shared_conversation_view.go
+++ b/shared_conversation_view.go
@@ -13,7 +13,7 @@ import (
 	"mujicaui/theme"
 )
 
-// SessionRole is who wrote a message. The zero value is SessionUser.
+// SessionRole is who wrote a message; zero is SessionUser.
 type SessionRole int
 
 const (
@@ -22,7 +22,7 @@ const (
 	SessionSystem
 )
 
-// SessionMessage is one message of a saved conversation, as plain text.
+// SessionMessage is one saved message, as plain text.
 type SessionMessage struct {
 	Role SessionRole
 	// Author names the writer; empty uses the role's name.
@@ -39,7 +39,7 @@ type SharedConversationViewOptions struct {
 	Disabled bool
 }
 
-// SharedConversationView shows a shared conversation read-only, with who shared it and when; it reports Copy link.
+// SharedConversationView shows a shared conversation read-only with Copy link.
 func SharedConversationView(c *ui.Context, messages []SessionMessage, opts SharedConversationViewOptions) ChoiceResult {
 	if opts.Title == "" {
 		panic("mujica: SharedConversationView needs a Title")
@@ -78,7 +78,7 @@ func SharedConversationView(c *ui.Context, messages []SessionMessage, opts Share
 
 type sharedConversationKey struct{}
 
-// sessionMessageView is one read-only message: author, time and selectable plain text.
+// sessionMessageView shows one read-only message with author and time.
 func sessionMessageView(c *ui.Context, k theme.Tokens, m SessionMessage) {
 	d := Density(c)
 	if m.Role < SessionUser || m.Role > SessionSystem {
diff --git a/stop_generating_button.go b/stop_generating_button.go
index c63739c..0d5fe29 100644
--- a/stop_generating_button.go
+++ b/stop_generating_button.go
@@ -17,7 +17,7 @@ type StopGeneratingButtonOptions struct {
 	Disabled   bool
 }
 
-// StopGeneratingButton asks to stop a reply while one is generating; Cmd+. (Ctrl+. elsewhere) does too.
+// StopGeneratingButton asks to stop generating; Mod+. does too.
 func StopGeneratingButton(c *ui.Context, opts StopGeneratingButtonOptions) ChoiceResult {
 	if !opts.Generating {
 		return ChoiceResult{}
diff --git a/suggestion_chips.go b/suggestion_chips.go
index 0b4fcc7..c11de04 100644
--- a/suggestion_chips.go
+++ b/suggestion_chips.go
@@ -12,7 +12,7 @@ import (
 
 // SuggestionChipsOptions configure SuggestionChips.
 type SuggestionChipsOptions struct {
-	// Send makes a click send the suggestion; by default it fills the input.
+	// Send makes a click send instead of filling the input.
 	Send bool
 	// Label names the group, such as "Follow-up questions".
 	Label    string
@@ -24,11 +24,11 @@ type SuggestionChipsView struct {
 	Element *ui.Element
 	// Chosen is the suggestion clicked, empty for none.
 	Chosen string
-	// Sent reports that Chosen should be sent now; otherwise it is already in the input.
+	// Sent asks to send Chosen now instead of filling.
 	Sent bool
 }
 
-// SuggestionChips offers starter prompts or follow-ups; a click fills *input, or with Send asks to send.
+// SuggestionChips offers prompts that fill *input or ask to send.
 func SuggestionChips(c *ui.Context, input *string, suggestions []string, opts SuggestionChipsOptions) SuggestionChipsView {
 	if input == nil {
 		panic("mujica: SuggestionChips needs an input")
diff --git a/system_prompt_editor.go b/system_prompt_editor.go
index 7fcba8d..ffb0792 100644
--- a/system_prompt_editor.go
+++ b/system_prompt_editor.go
@@ -17,23 +17,23 @@ import (
 type SystemPromptEditorOptions struct {
 	// Default is what Restore default puts back.
 	Default string
-	// Saved is the text last saved; a different value shows as unsaved.
+	// Saved is the text last saved; differences show as unsaved.
 	Saved string
-	// MaxLength is the character limit; over it, Save is blocked. Zero is none.
+	// MaxLength limits characters, blocking Save beyond it; zero is none.
 	MaxLength int
 	// Saving shows the caller's save in progress and blocks editing.
 	Saving   bool
 	Disabled bool
 }
 
-// SystemPromptEditorView is a built editor and what the user asked for.
+// SystemPromptEditorView is a built editor and its requests.
 type SystemPromptEditorView struct {
 	Element *ui.Element
-	// Save asks the caller to save *value; Restored reports the default was put back.
+	// Save asks to save *value; Restored reports the default returned.
 	Save, Restored bool
 }
 
-// SystemPromptEditor edits a system prompt with a character count, restore default, an unsaved mark and Mod+S to save.
+// SystemPromptEditor edits a system prompt with count, restore and save.
 func SystemPromptEditor(c *ui.Context, value *string, opts SystemPromptEditorOptions) SystemPromptEditorView {
 	if value == nil {
 		panic("mujica: SystemPromptEditor needs a value")
diff --git a/testdata/snapshots/darwin/conversation_list-dark.png b/testdata/snapshots/darwin/conversation_list-dark.png
index 493b247..775de36 100644
Binary files a/testdata/snapshots/darwin/conversation_list-dark.png and b/testdata/snapshots/darwin/conversation_list-dark.png differ
diff --git a/testdata/snapshots/darwin/conversation_list-light.png b/testdata/snapshots/darwin/conversation_list-light.png
index 24d91af..ba51165 100644
Binary files a/testdata/snapshots/darwin/conversation_list-light.png and b/testdata/snapshots/darwin/conversation_list-light.png differ
diff --git a/thinking_indicator.go b/thinking_indicator.go
index df72017..aa1f61d 100644
--- a/thinking_indicator.go
+++ b/thinking_indicator.go
@@ -11,11 +11,11 @@ import (
 
 // ThinkingIndicatorOptions configure a ThinkingIndicator.
 type ThinkingIndicatorOptions struct {
-	// Phase is the caller's stage text, such as "Searching the web"; empty uses "Thinking".
+	// Phase is the caller's stage text; empty uses "Thinking".
 	Phase string
 }
 
-// ThinkingIndicator shows the assistant is working: three diamonds rising in turn and the phase; still under reduced motion.
+// ThinkingIndicator shows rising diamonds and a phase, still when reduced.
 func ThinkingIndicator(c *ui.Context, opts ThinkingIndicatorOptions) *ui.Element {
 	k := Tokens(c)
 	d := Density(c)
diff --git a/welcome_screen.go b/welcome_screen.go
index fca9d27..cd0d46e 100644
--- a/welcome_screen.go
+++ b/welcome_screen.go
@@ -17,7 +17,7 @@ type WelcomeScreenOptions struct {
 	Disabled bool
 }
 
-// WelcomeScreen greets a new conversation with capability cards and a starter-prompt slot; it reports a chosen example.
+// WelcomeScreen greets a new conversation with cards and prompts.
 func WelcomeScreen(c *ui.Context, opts WelcomeScreenOptions) CapabilityCardsView {
 	if opts.Greeting == "" {
 		panic("mujica: WelcomeScreen needs a Greeting")