app: PS-style colour picker and an eyedropper that keeps the popup open

- the popup now offers a large SV palette with a hue bar plus RGB/HSV
  mode tabs (shared slider model swap, hsv<->rgb pure functions)
- while the eyedropper is armed, clicks outside the popup pick a colour
  instead of dismissing it, so the picked draft can still be confirmed
- regression test pinning the OFX plugin colour set/read/undo chain
- i18n: ofx.color.mode_rgb/mode_hsv in all eight packs

assets/i18n/de.yaml

@@ -237,6 +237,8 @@
 "ofx.color.cancel": "Abbrechen"
 "ofx.color.invalid": "Ungültige Hexadezimalfarbe"
 "ofx.color.pick_viewer": "Aus dem Viewer auswählen"
+"ofx.color.mode_rgb": "RGB"
+"ofx.color.mode_hsv": "HSV"
 "dialog.cancel": "Abbrechen"
 "dialog.close": "Schließen"
 "dialog.ok": "OK"

assets/i18n/en-US.yaml

@@ -237,6 +237,8 @@
 "ofx.color.cancel": "Cancel"
 "ofx.color.invalid": "Invalid hex color"
 "ofx.color.pick_viewer": "Pick from viewer"
+"ofx.color.mode_rgb": "RGB"
+"ofx.color.mode_hsv": "HSV"
 "dialog.cancel": "Cancel"
 "dialog.close": "Close"
 "dialog.ok": "OK"

assets/i18n/es.yaml

@@ -237,6 +237,8 @@
 "ofx.color.cancel": "Cancelar"
 "ofx.color.invalid": "Color hexadecimal no válido"
 "ofx.color.pick_viewer": "Seleccionar del visor"
+"ofx.color.mode_rgb": "RGB"
+"ofx.color.mode_hsv": "HSV"
 "dialog.cancel": "Cancelar"
 "dialog.close": "Cerrar"
 "dialog.ok": "Aceptar"

assets/i18n/fr.yaml

@@ -237,6 +237,8 @@
 "ofx.color.cancel": "Annuler"
 "ofx.color.invalid": "Couleur hexadécimale invalide"
 "ofx.color.pick_viewer": "Choisir dans le visualiseur"
+"ofx.color.mode_rgb": "RGB"
+"ofx.color.mode_hsv": "HSV"
 "dialog.cancel": "Annuler"
 "dialog.close": "Fermer"
 "dialog.ok": "OK"

assets/i18n/ja.yaml

@@ -237,6 +237,8 @@
 "ofx.color.cancel": "キャンセル"
 "ofx.color.invalid": "無効な16進カラーです"
 "ofx.color.pick_viewer": "ビューアから拾う"
+"ofx.color.mode_rgb": "RGB"
+"ofx.color.mode_hsv": "HSV"
 "dialog.cancel": "キャンセル"
 "dialog.close": "閉じる"
 "dialog.ok": "OK"

assets/i18n/pt.yaml

@@ -237,6 +237,8 @@
 "ofx.color.cancel": "Cancelar"
 "ofx.color.invalid": "Cor hexadecimal inválida"
 "ofx.color.pick_viewer": "Escolher do visualizador"
+"ofx.color.mode_rgb": "RGB"
+"ofx.color.mode_hsv": "HSV"
 "dialog.cancel": "Cancelar"
 "dialog.close": "Fechar"
 "dialog.ok": "OK"

assets/i18n/ru.yaml

@@ -237,6 +237,8 @@
 "ofx.color.cancel": "Отмена"
 "ofx.color.invalid": "Недопустимый шестнадцатеричный цвет"
 "ofx.color.pick_viewer": "Выбрать из просмотрщика"
+"ofx.color.mode_rgb": "RGB"
+"ofx.color.mode_hsv": "HSV"
 "dialog.cancel": "Отмена"
 "dialog.close": "Закрыть"
 "dialog.ok": "ОК"

assets/i18n/zh-CN.yaml

@@ -237,6 +237,8 @@
 "ofx.color.cancel": "取消"
 "ofx.color.invalid": "无效的十六进制颜色"
 "ofx.color.pick_viewer": "从画面取色"
+"ofx.color.mode_rgb": "RGB"
+"ofx.color.mode_hsv": "HSV"
 "dialog.cancel": "取消"
 "dialog.close": "关闭"
 "dialog.ok": "确定"