webconfig: Allow transferring modifiers and backgrounds

This just simply passed the "color" value, which is just the
foreground color string.

Instead, we pass the actual object back, with the modifiers as bools
and foreground/background separate.

Our themes don't use background a lot, except in the pager, so this
never really came up.

share/tools/web_config/webconfig.py

@@ -226,6 +226,26 @@ def parse_color(color_str):
         "reverse": reverse,
     }
 
+def unparse_color(col):
+    """A basic function to return the fish version of a color dict"""
+    if isinstance(col, str):
+        return col
+    ret = ""
+    if col["color"]:
+        ret += col["color"]
+    if col["bold"]:
+        ret += " --bold"
+    if col["underline"]:
+        ret += " --underline"
+    if col["italics"]:
+        ret += " --italics"
+    if col["dim"]:
+        ret += " --dim"
+    if col["reverse"]:
+        ret += " --reverse"
+    if col["background"]:
+        ret += " --background=" + col["background"]
+    return ret
 
 def parse_bool(val):
     val = val.lower()
@@ -1114,6 +1134,8 @@ class FishConfigHTTPRequestHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):
             raise ValueError
         if not color and not color == "":
             color = "normal"
+        else:
+            color = unparse_color(color)
         if not name.startswith("fish_pager_color_"):
             varname = "fish_color_" + name
         # If the name already starts with "fish_", use it as the varname