On-device feedback: two identical icons on the car's now-playing screen, one of which looked dead. It worked -- but head units render custom actions icon-first, so cycling six presets behind one static glyph was invisible. A monochrome icon cannot encode which of six presets is active. Android Auto separates the idioms deliberately: custom actions for stateless toggles, browsable lists for choosing among options. - Playback screen keeps one action: equalizer on/off, state-aware icons - New Ecualizador folder lists Desactivar plus the six presets by name, active one marked - The preset-cycling action and its drawable are removed Supersedes the redesign's no-equalizer-folder rule, which predated knowing custom actions do not surface state in a car. # Conflicts: # lib/l10n/app_ar.arb # lib/l10n/app_bn.arb # lib/l10n/app_de.arb # lib/l10n/app_en.arb # lib/l10n/app_es.arb # lib/l10n/app_fr.arb # lib/l10n/app_hi.arb # lib/l10n/app_id.arb # lib/l10n/app_it.arb # lib/l10n/app_ja.arb # lib/l10n/app_pt.arb # lib/l10n/app_ru.arb # lib/l10n/app_zh.arb