diff --git a/bin/executable_showcert b/bin/executable_showcert
index 86f3be5..5caf587 100644
--- a/bin/executable_showcert
+++ b/bin/executable_showcert
@@ -19,7 +19,7 @@ fetch_file() {
     cat $1
 }
 
-coproc fetch $1 | openssl x509 -in - -noout -subject -issuer -startdate -enddate -ext subjectAltName | sed '/X509v3 Subject Alternative Name/ {n ; s/DNS://g ; s/, /\n    /g;}'
+coproc fetch $1 | openssl x509 -in /dev/stdin -noout -subject -issuer -startdate -enddate -ext subjectAltName | sed '/X509v3 Subject Alternative Name/ {n ; s/DNS://g ; s/, /\n    /g;}'
 
 exec 3> >(LC_ALL=C sort)
 
diff --git a/dot_config/zsh/include/p10k.zsh b/dot_config/zsh/include/p10k.zsh
index 05a5d77..0f48a23 100644
--- a/dot_config/zsh/include/p10k.zsh
+++ b/dot_config/zsh/include/p10k.zsh
@@ -37,14 +37,27 @@
   # Zsh >= 5.1 is required.
   [[ $ZSH_VERSION == (5.<1->*|<6->.*) ]] || return
 
-  # Prompt colors.
-  local grey='242'
-  local red='1'
-  local yellow='3'
-  local blue='4'
-  local magenta='5'
-  local cyan='6'
-  local white='7'
+  if (( $(echotc Co) > 8 )) # linux console has 8
+  then
+    local grey='#7c6f64' # gruvbox dark4
+    local red='#fb4934'
+    local green='#b8bb26'
+    local yellow='#fabd2f'
+    local blue='#458588'
+    local magenta='#d3869b' # gruvbox purple
+    local cyan='#8ec07c' # gruvbox aqua
+    local white='#f9f5d7'
+
+  else
+    # Prompt colors.
+    local grey='242'
+    local red='1'
+    local yellow='3'
+    local blue='4'
+    local magenta='5'
+    local cyan='6'
+    local white='7'
+  fi
 
   # Left prompt segments.
   typeset -g POWERLEVEL9K_LEFT_PROMPT_ELEMENTS=(