add colors and formatting variable for ansi escape codes

ansi.go

@@ -0,0 +1,30 @@
+package tui
+
+// Formatting
+const (
+	FmtReset              = "\033[0m"
+	FmtBold               = "\033[1m"
+	FmtBoldReset          = "\033[22m"
+	FmtDim                = "\033[2m"
+	FmtDimReset           = FmtBoldReset
+	FmtItalic             = "\033[3m"
+	FmtItalicReset        = "\033[23m"
+	FmtUnderline          = "\033[4m"
+	FmtUnderlineReset     = "\033[24m"
+	FmtBlink              = "\033[5m"
+	FmtBlinkReset         = "\033[25m"
+	FmtReverse            = "\033[7m"
+	FmtReverseReset       = "\033[27m"
+	FmtHidden             = "\033[8m"
+	FmtHiddenReset        = "\033[28m"
+	FmtStrikethrough      = "\033[9m"
+	FmtStrikethroughReset = "\033[29m"
+)
+
+// Foreground Colors
+const (
+	FgColorGrey  = "\033[38;5;247m"
+	FgColorGold  = "\033[28;5;214m"
+	FgColorGreen = "\033[38;5;34m"
+	FgColorRed   = "\033[38;5;167m"
+)