"HI" 是一个 Twitch 聊天里打招呼的表情，采用亲切的卡通风格。一只挥手的小黄手旁边是两个厚实的蓝字，都带白边和深色描边，背景是纯浅蓝方块。可以换成你自己的招呼词，比如 HEY 或 YO，再挑你的颜色。

Create a square 1:1 Twitch chat emote, designed to remain instantly legible when reduced to 28 × 28 px. Show one small, bright yellow waving hand on the left, next to the exact lettering “HI” on the right. The hand has a simple silhouette, four clearly separated rounded fingers and a bold navy cuff; avoid tiny lines or details. Set “HI” in oversized, chunky, custom-drawn blue uppercase letters with broad strokes, compact spacing, open counters and rounded corners. Keep the letters upright and unmistakable at tiny size. Treat the hand and lettering as one compact die-cut sticker: crisp dark navy outline immediately around the colored forms, then a thick clean white outer rim around the complete silhouette. Flat, solid color fills; no gradients, texture, shadows, glow, extra text, symbols, props or decoration. Center the hand-and-word pair, filling about 80% of the canvas while leaving a clear safety margin. Use a single plain, solid pale blue background. Clean vector-like edges, strong color separation, high contrast; no scene or background detail.