Best we can do

vars/printBanner.groovy

@@ -1,16 +1,28 @@
+
 void call(String stepName) {
-    stepCorner = '+'
-    stepBanner = "║   $stepName   ║"
-    bannerWidth = stepBanner.length() - 2
-    // banner = stepCorner + ('=' * bannerWidth) + stepCorner
+    red = '\033[31m'
+    blue = '\033[34m'
+    normal = '\033[0m'
+
+    stepBanner = "║   $blue$stepName$red   ║"
+    bannerWidth = stepName.length() + 6
 
     top = '╔' + ('═' * bannerWidth) + '╗'
     bottom = '╚' + ('═' * bannerWidth) + '╝'
-    red = '\\e[31m'
-    normal = '\\e[0m'
     ansiColor('xterm') {
         echo "$red$top\n$stepBanner\n$bottom$normal"
     }
 }
 
+    // fg_black   = '\x1b[30m'
+    // fg_red     = "\x1b[31m"
+    // fg_green   = "\x1b[32m"
+    // fg_yellow  = "\x1b[33m"
+    // fg_blue    = "\x1b[34m"
+    // fg_magenta = "\x1b[35m"
+    // fg_cyan    = "\x1b[36m"
+    // fg_white   = "\x1b[37m"
+    // fg_default = "\x1b39m"
+    // fg_reset   = "\x1b[0m"
+
 // ═ ║ ╒ ╓ ╔ ╕ ╖ ╗ ╘ ╙ ╚ ╛ ╜ ╝ ╞ ╟ ╠ ╡ ╢ ╣ ╤ ╥ ╦ ╧ ╨ ╩ ╪ ╫ ╬