优化缩略图

_locales/en.json

@@ -37,7 +37,7 @@
         "animatedWebpUnavailable": "This environment cannot encode WebP. Choose APNG instead.",
         "animatedCannotFit": "The animation cannot be reduced to {target} KB (minimum about {actual} KB). Increase the limit or shorten the frame range.",
         "animatedPickTitle": "Pick a thumbnail",
-        "animatedPickHint": "Every result keeps a 400×400 canvas; the label shows detail resolution@fps/quality/file size. Select one and press Confirm to replace the thumbnail, or cancel to discard them all.",
+        "animatedPickHint": "Every result keeps a {size} canvas; the label shows detail resolution@fps/quality/file size. Select one and press Confirm to replace the thumbnail, or cancel to discard them all.",
         "animatedPickConfirm": "Confirm",
         "animatedPriority": "Priority",
         "animatedCanvas": "Canvas size",