💄 Improve styling of colored cards (gkeep)

Instead of giving the card a black background and coloring the text some
color, remove the border (because border on background is ugly) and make
the background the card's color. The foreground color is determined with
`readable_on`. Also update `readable_on` to return Rich colors by
default, since it's what I'm using everywhere.

ideaseed/gkeep.py

@@ -19,7 +19,8 @@
                                 VALID_COLOR_NAMES)
 from ideaseed.ondisk import Idea
 from ideaseed.utils import (answered_yes_to, ask, case_insensitive_find,
-                            error_message_no_object_found, print_dry_run)
+                            error_message_no_object_found, print_dry_run,
+                            readable_on)
 
 rich.traceback.install()
 
@@ -174,7 +175,9 @@ def push_to_gkeep(
         description=body,
         labels=map(to_ui_label, labels),
         card_title="",
-        card_style=to_rich_color(color) + " on black",
+        card_style="default"
+        if color == "White"
+        else f"{readable_on(COLOR_NAME_TO_HEX_MAP[color])} on {to_rich_color(color)}",
         milestone=None,
         assignees=assign,
         project=None,

ideaseed/ui.py

@@ -1,6 +1,7 @@
 from shutil import get_terminal_size
 from typing import Iterable, NamedTuple, Optional
 
+import rich.box
 import rich.markup
 from rich import print
 from rich.align import Align
@@ -69,7 +70,7 @@ class Label(NamedTuple):
     url: Optional[str] = None
 
     def __str__(self) -> str:
-        s = f"[#{readable_on(self.color)} on #{self.color}]{self.name}[/]"
+        s = f"[{readable_on(self.color)} on #{self.color}]{self.name}[/]"
         if self.url:
             s = href(s, self.url)
         return s
@@ -107,7 +108,12 @@ def make_card(
         label_row.add_row(", ".join(map(str, labels)))
         card.add_row(label_row)
 
-    return Panel(card, title=card_title, style=card_style)
+    return Panel(
+        card,
+        title=card_title,
+        style=card_style,
+        box=rich.box.ROUNDED if "on " not in card_style else Box("    \n" * 8),
+    )
 
 
 def make_table(

ideaseed/utils.py

@@ -83,7 +83,7 @@ def process_response(self, value: str) -> PromptType:
         return val
 
 
-def readable_on(background: str, light: str = "FFFFFF", dark: str = "000000") -> str:
+def readable_on(background: str, light: str = "white", dark: str = "black") -> str:
     """
     Choses either ``light`` or ``dark`` based on the background color
     the text is supposed to be written on ``background`` (also given as an hex int)