decorationAuto method
decoration-auto: text-decoration-thickness: auto; ⚠️ 限制：Flutter 不完全支持 CSS auto 值，使用默认 1.0px
Implementation
TextBuilder decorationAuto() => decorationThickness(1.0);
decorationAuto method
decoration-auto: text-decoration-thickness: auto; ⚠️ 限制：Flutter 不完全支持 CSS auto 值，使用默认 1.0px
TextBuilder decorationAuto() => decorationThickness(1.0);