Refresh dark README screenshots and balance teleprompter text

Author: KSemenenko

AGENTS.md

@@ -78,6 +78,8 @@ Rule format:
 
 - Use `PrompterOne` as the canonical product, solution, namespace, and folder name across code, docs, tests, and build paths; do not reintroduce legacy product-name variants after the rename.
 - Repo-owned docs, README, ADRs, and AGENTS files must not contain local usernames, home-directory paths, or personal machine-specific references; use repo-relative paths or neutral wording instead.
+- Public-facing screenshots and any screenshot-generating or screenshot-asserting tests must use English-visible content so README, docs, and release assets stay globally readable and consistent.
+- Public-facing screenshots that include camera or preview feeds must not ship mirrored or reversed readable text; choose or configure the capture so visible text reads correctly in the final asset.
 
 ## Rules to Follow (Mandatory)
 

docs/screenshots/readme/editor.png

@@ -11,6 +11,9 @@ public partial class TeleprompterPage
     private const string ReaderCardCssClass = "rd-card";
     private const string ReaderCardNextCssClass = "rd-card-next";
     private const string ReaderCardPreviousCssClass = "rd-card-prev";
+    private const int ReaderComfortableContentMaxWidth = 940;
+    private const int ReaderComfortablePortraitContentMaxWidth = 760;
+    private const string ReaderContentMaxWidthVariableName = "--rd-content-max-width";
     private const string ReaderControlButtonCssClass = "rd-ctrl-btn";
     private const string ReaderCountdownCssClass = "rd-countdown";
     private const string ReaderGradientCssClass = "rd-gradient";
@@ -124,9 +127,11 @@ private string BuildWidthGuideStyle(bool isLeft)
 
     private string BuildClusterWrapStyle()
     {
+        var contentMaxWidth = ResolveReaderContentMaxWidth();
         var styleParts = new List<string>
         {
             $"max-width:{_readerTextWidth.ToString(CultureInfo.InvariantCulture)}px",
+            $"{ReaderContentMaxWidthVariableName}:{contentMaxWidth.ToString(CultureInfo.InvariantCulture)}px",
             $"--rd-font-size:{_readerFontSize.ToString(CultureInfo.InvariantCulture)}px"
         };
         var readerTransform = BuildReaderTransform();
@@ -140,6 +145,14 @@ private string BuildClusterWrapStyle()
         return string.Join(';', styleParts) + ';';
     }
 
+    private int ResolveReaderContentMaxWidth()
+    {
+        var contentMaxWidth = Math.Min(_readerTextWidth, ReaderComfortableContentMaxWidth);
+        return _readerTextOrientation == ReaderTextOrientation.Portrait
+            ? Math.Min(contentMaxWidth, ReaderComfortablePortraitContentMaxWidth)
+            : contentMaxWidth;
+    }
+
     private string BuildReaderTransform()
     {
         var transforms = new List<string>();

docs/screenshots/readme/go-live.png

@@ -87,13 +87,17 @@
 
 .rd-cluster-text {
     font-size: var(--rd-font-size, 36px);
+    max-width: min(100%, var(--rd-content-max-width, 940px));
     font-weight: 700;
     line-height: 1.9;
     color: rgba(242,230,204,.34);
     letter-spacing: 0.01em;
     word-spacing: 0.08em;
+    margin-inline: auto;
     overflow-wrap: break-word;
     hyphens: none;
+    text-align: center;
+    text-wrap: balance;
     font-kerning: normal;
     font-feature-settings: "kern" 1;
     -webkit-font-smoothing: antialiased;

docs/screenshots/readme/learn.png

@@ -19,8 +19,16 @@ await Expect(page.GetByTestId(UiTestIds.Header.LibraryBreadcrumbCurrent))
             await Expect(page.GetByTestId(UiTestIds.Header.GoLive))
                 .ToHaveClassAsync(BrowserTestConstants.Regexes.GoLiveHeaderClass);
             await Expect(page.GetByTestId(UiTestIds.Library.FolderChips)).ToHaveCountAsync(0);
+
+            var presentationsFolder = page.GetByTestId(BrowserTestConstants.Elements.PresentationsFolder);
+            await presentationsFolder.ClickAsync();
+            await Expect(page.GetByTestId(UiTestIds.Header.LibraryBreadcrumbCurrent))
+                .ToHaveTextAsync(BrowserTestConstants.Folders.PresentationsName);
             UiScenarioArtifacts.ResetScenario(StartupScenarioName);
             await UiScenarioArtifacts.CapturePageAsync(page, StartupScenarioName, StartupScenarioStep);
+
+            await page.GetByTestId(UiTestIds.Library.FolderAll).ClickAsync();
+
             var demoCard = page.GetByTestId(BrowserTestConstants.Elements.DemoCard);
             await Expect(demoCard).ToContainTextAsync(BrowserTestConstants.Scripts.ProductLaunchTitle);
             await Expect(demoCard.Locator(BrowserTestConstants.Selectors.CardCoverMeta))