Add visible whitespace to helix

Add back italics.  They don't work in TMUX still, but at least I can now
use them in the theme to better hilight function parameters.

config/alacritty.yml

@@ -32,17 +32,10 @@ scrolling:
   history: 10000
   multiplier: 3
 
-# Font configuration (changes require restart)
+# Font configuration
 font:
-  #normal:
-    #family: monospace
-    #style: Regular
-  #bold:
-    #family: monospace
-    #style: Bold
-  italic:
-    family: monospace
-    style: Italic
+  normal:
+    family: BerkeleyMono
   size: 11.0
   offset:
     x: 0

config/helix/config.toml

@@ -9,3 +9,5 @@ theme = "glfmn"
 color-modes = true # Differentiate between modes in lower left-hand corner
 bufferline = "multiple" # Show buffers as tabs
 
+[editor.whitespace]
+render = "all"

config/helix/themes/glfmn.toml

@@ -7,17 +7,14 @@ inherits = "gruvbox"
 # Make operators less loud but stil stand out
 "operator" = "fg3"
 
-# Remove italics (can cause issues with tmux)
-"comment" = "gray1"
-
 # Unify look of variables with slight contrast difference to emphasize
 # function parameters.
 "variable" = "fg2"
-"variable.parameter" = "fg1"
-"variable.builtin" = "fg1"
+"variable.parameter" = { fg = "fg1", modifiers = ["italic"] }
+"variable.builtin" = { fg = "fg1", modifiers = ["italic"] }
 
 # Unify look of functions
-"function" = "green1" 
+"function" = "green1"
 "function.macro" = "aqua1"
 "function.builtin" = { fg = "green1", modifiers = ["bold"] }