Make colors in demo stand out more using Unicode block symbol

dotfiles/config/bashum/colors.bashrc

@@ -75,12 +75,12 @@ bashum__colordemo() {
     local lcya=$BASHUM_COLOR_LCYAN
     local lwhi=$BASHUM_COLOR_LWHITE
     local n=$BASHUM_COLOR_NORMAL
-    echo "black:   $bla[abc123]$n   lblack: $lbla[abc123]$n"
-    echo "red:     $red[abc123]$n     lred: $lred[abc123]$n"
-    echo "yellow:  $yel[abc123]$n  lyellow: $lyel[abc123]$n"
-    echo "green:   $gre[abc123]$n   lgreen: $lgre[abc123]$n"
-    echo "cyan:    $cya[abc123]$n    lcyan: $lcya[abc123]$n"
-    echo "blue:    $blu[abc123]$n    lblue: $lblu[abc123]$n"
-    echo "magenta: $mag[abc123]$n lmagenta: $lmag[abc123]$n"
-    echo "white:   $whi[abc123]$n   lwhite: $lwhi[abc123]$n"
+    echo "black:   $bla[🬹abc123]$n   lblack: $lbla[🬹abc123]$n"
+    echo "red:     $red[🬹abc123]$n     lred: $lred[🬹abc123]$n"
+    echo "yellow:  $yel[🬹abc123]$n  lyellow: $lyel[🬹abc123]$n"
+    echo "green:   $gre[🬹abc123]$n   lgreen: $lgre[🬹abc123]$n"
+    echo "cyan:    $cya[🬹abc123]$n    lcyan: $lcya[🬹abc123]$n"
+    echo "blue:    $blu[🬹abc123]$n    lblue: $lblu[🬹abc123]$n"
+    echo "magenta: $mag[🬹abc123]$n lmagenta: $lmag[🬹abc123]$n"
+    echo "white:   $whi[🬹abc123]$n   lwhite: $lwhi[🬹abc123]$n"
 }