[Palette] Fix wrong logic

palette/converters.py

@@ -5,7 +5,7 @@
 from redbot.core.commands import BadArgument, Converter
 
 IMAGE_LINKS = re.compile(r"(https?:\/\/[^\"\'\s]*\.(?:png|jpg|jpeg|gif|png|svg)(\?size=[0-9]*)?)")
-EMOJI_REGEX = re.compile(r"(<(a)?:[a-zA-Z0-9\_]+:([0-9]+)>)")
+EMOJI_REGEX = re.compile(r"(<(a)?:[a-zA-Z0-9\_]+:([0-9]+)>)|(:[a-zA-Z0-9_]+:)")
 MENTION_REGEX = re.compile(r"<@!?([0-9]+)>")
 ID_REGEX = re.compile(r"[0-9]{17,}")
 

palette/palette.py

@@ -68,12 +68,14 @@ async def palette(
         - `[detailed]` Whether to show the colours in a detailed format (with rgb and hex). Defaults to False.
         - `[sort]` Whether to sort the colours by rgb. Defaults to False.
         """
-        if not image and (attachments := ctx.message.attachments):
-            valid_attachments = [a for a in attachments if a.content_type in VALID_CONTENT_TYPES]
-            if valid_attachments:
-                image = valid_attachments[0].url
-            else:
-                image = str(ctx.author.display_avatar)
+        if not image:
+            image = str(ctx.author.display_avatar)
+            if attachments := ctx.message.attachments:
+                valid_attachments = [
+                    a for a in attachments if a.content_type in VALID_CONTENT_TYPES
+                ]
+                if valid_attachments:
+                    image = valid_attachments[0].url
         async with ctx.typing():
             img = await self.get_img(ctx, str(image))
         if isinstance(img, dict):