refactor core attestation logic (#73)

Signed-off-by: Brian DeHamer <[email protected]>

src/style.ts

@@ -0,0 +1,11 @@
+const COLOR_CYAN = '\x1B[36m'
+const COLOR_GRAY = '\x1B[38;5;244m'
+const COLOR_DEFAULT = '\x1B[39m'
+
+// Emphasis string using ANSI color codes
+export const highlight = (str: string): string =>
+  `${COLOR_CYAN}${str}${COLOR_DEFAULT}`
+
+// De-emphasize string using ANSI color codes
+export const mute = (str: string): string =>
+  `${COLOR_GRAY}${str}${COLOR_DEFAULT}`