Add support for a Red theme to the currently provided built-in themes… (#687)

* Add support for a Red theme to the currently provided built-in themes. Complete the RGB.

* Update src/inquirer/themes.py

looks good

Co-authored-by: Jan Wille <mail@janwille.de>

* Apply review suggestions

---------

Co-authored-by: Jan Wille <mail@janwille.de>

Author: ofeknissan

docs/images/inquirer_theme-compare.png

@@ -100,6 +100,20 @@ def __init__(self):
         self.List.unselected_color = term.normal
 
 
+class RedSolace(Default):
+    def __init__(self):
+        super().__init__()
+        self.Question.brackets_color = term.red2
+        self.Question.default_color = term.firebrick1
+        self.Checkbox.selection_icon = "➠"
+        self.Checkbox.selection_color = term.bold_black_on_bright_red
+        self.Checkbox.selected_icon = "🔥"
+        self.Checkbox.selected_color = term.webmaroon
+        self.Checkbox.unselected_icon = "❑"
+        self.List.selection_color = term.bold_black_on_bright_red
+        self.List.selection_cursor = "➠"
+
+
 class GreenPassion(Default):
     def __init__(self):
         super().__init__()

src/inquirer/themes.py

@@ -84,3 +84,25 @@ def test_themes_blue_composure():
     assert hasattr(t.List, "selection_color")
     assert hasattr(t.List, "selection_cursor")
     assert hasattr(t.List, "unselected_color")
+
+
+def test_themes_red_composure():
+    t = themes.RedSolace()
+
+    assert hasattr(t, "Question")
+    assert hasattr(t.Question, "mark_color")
+    assert hasattr(t.Question, "brackets_color")
+    assert hasattr(t.Question, "default_color")
+    assert hasattr(t, "Editor")
+    assert hasattr(t.Editor, "opening_prompt")
+    assert hasattr(t, "Checkbox")
+    assert hasattr(t.Checkbox, "selection_color")
+    assert hasattr(t.Checkbox, "selection_icon")
+    assert hasattr(t.Checkbox, "selected_icon")
+    assert hasattr(t.Checkbox, "selected_color")
+    assert hasattr(t.Checkbox, "unselected_icon")
+    assert hasattr(t.Checkbox, "unselected_color")
+    assert hasattr(t, "List")
+    assert hasattr(t.List, "selection_color")
+    assert hasattr(t.List, "selection_cursor")
+    assert hasattr(t.List, "unselected_color")