Phase L L3: restyle VST editor + embed strip through the L1 kit (B pastel + spectral strip)

tests/test_theme.cpp

@@ -134,6 +134,23 @@ static void testLabelOnActiveSurfaceClearsFloor() {
     CHECK(contrastRatio(labelOnActive, activeFill) >= textFloor(TextClass::Body));
 }
 
+// Text drawn on a HOVER-state surface (Phase L, L3): the VST editor + embed restyle lights
+// hover on inactive segments/tabs/cards by lightening bg/cell toward accent/hot (~10%).
+// Lightening the surface REDUCES contrast against light text, so re-verify the pairs on the
+// hover surface, not just on rest bg/cell. (A distinct drawn pair the L3 shells introduce,
+// not covered by the rest-surface tests above.)
+//   - text/PRIMARY (card name, segment/tab labels) is BODY -> must clear AA 4.5:1 even hovered.
+//   - text/DIM is used ONLY as a compact UI LABEL on a hoverable surface (the card's root/key
+//     BADGE — the one dim-on-hover pair the restyle draws), so it clears at the 3:1 large/
+//     UI-label floor, per §2.1's "confine dim to large/UI-label use where the 3:1 floor
+//     applies." A lightened surface pulls a mid-grey dim toward the body floor; the badge is
+//     deliberately a label, not body, so 3:1 is the correct floor and this locks it there.
+static void testTextOnHoverSurfaceClearsFloor() {
+    const KitColor hover = roleColorState(Role::BgCell, InteractionState::Hover);
+    CHECK(contrastRatio(roleColor(Role::TextPrimary), hover) >= textFloor(TextClass::Body));
+    CHECK(contrastRatio(roleColor(Role::TextDim), hover) >= textFloor(TextClass::Large));
+}
+
 // --- Single point of change (structural guarantee) ----------------------------
 //
 // roleColor is the ONLY color source; there is no other public accessor that yields a
@@ -217,6 +234,7 @@ int main() {
     testTextDimClearsItsFloorOnSurfaces();
     testAccentsClearIndicatorFloorOnCell();
     testTextOnPastelFillClearsBodyFloor();
+    testTextOnHoverSurfaceClearsFloor();
     testSecondaryTertiaryAreDistinguishable();
     testWarnClearsStateFloorOnBackground();
     testLabelOnActiveSurfaceClearsFloor();