incorrect icon: Improve close / checkmark icon.

描述

Describe the Issue

Just a minor but somewhat annoying issue from a meticulous UI dev. Especially when using close and checkmark icon together. It seems that either the close is not correct or checkmark. You can decide.

Comparison

Type	Close	Checkmark	Compare	Comment
outline				Seems ok.
filled				The close appears too thick or the checkmark too thin.
sharp				Seems ok.

We see that the checkmark outline and filled appear the same. The filled checkmark should be thicker or the cross thinner.

贡献者指南

技术栈

typescript

领域

frontend

议题类型

bug

难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。

2

预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。

under 1 hour

活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。

fresh

清晰度议题是否清楚说明期望改动、验收标准和下一步。

clear

前置要求

无

新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。

90

研究方向

The issue compares close and checkmark icons across outline, filled, and sharp variants. The filled variant appears inconsistent. To resolve, locate the SVG source files for these icons in the repository (likely in src/svg), compare stroke width attributes, and adjust one to match the other. Maintainer input may be needed to decide which icon's stroke thickness to change. Check any existing icon guidelines for consistent stroke widths.