On my Thai vocabulary flashcards, I write the Thai words using a colour-coding system to indicate the correct tone to use for each syllable:
Red for High Tone syllables
Plain black for the Mid Tone syllables
Green for the Low Tone syllables
Light Green for rising tones. The tone is rising up from a low (dark green) tone, hence the light green? It made sense to me!
and
Pink for falling tones. The tone is falling from a high pitch, hence the colour should be a bit "less" than pure red?!
For the transliterated Thai to Roman Alphabet script, (which tells m