“TESTE DE LETRA”是使用 FontVibe AI 创作的霓虹招牌文字效果。经典路边霓虹招牌：玻璃灯管在深色砖墙上发出暖粉与琥珀色光，带安装支架，湿地面上有倒影。

rendered as a classic roadside neon sign with warm glowing tube light in soft pink and amber. Visible glass tube bends and mounting brackets on a dark painted metal backing plate. Warm light halo and bloom around each letter, slight buzzing energy feel. Dark matte wall surface — deep charcoal, minimal texture. Center: "TESTE DE LETRA" spelled out across two lines — "TESTE DE" / "LETRA" — with each letter in a different classic neon tube color — T in hot pink, E in electric blue, S in lime green, T in warm amber, E in violet, D in orange-red, E in hot pink, L in electric blue, E in lime green, T in warm amber, R in violet, A in orange-red. Each letter glows independently, halos distinct. Colorful retro neon arcade atmosphere — vibrant, playful, electric.