Merge in DESIGN/design from ~YUAN.WANG/design:release/10.0 to release/10.0 * commit 'c309ef5c27310c59e26e00b8cefd23ea1340345c': REPORT-38954&&REPORT-38927&&REPORT-38924&&REPORT-38896 修改Nullable的import REPORT-38954&&REPORT-38927&&REPORT-38924&&REPORT-38896 消除NPE REPORT-38954&&REPORT-38927&&REPORT-38924&&REPORT-38896 TopXCreator中添加XCreator的变量,绘制的时候禁用其双缓冲然后直接调用其paint方法