[GitHub] [echarts] andyboyne commented on issue #17544: [Bug] Tooltip Text is Blurry on Chrome due to use of translate3d for positioning

[GitBox <gi...@apache.org>]

andyboyne commented on issue #17544:
URL: https://github.com/apache/echarts/issues/17544#issuecomment-1222350610

   The problem seems to be chrome's anti-aliasing when you have non-white colours on a dark background. For example, I took one of the 'example' charts from the side and modified it like so:
   
   option = { title: { text: 'Stacked Area Chart' }, tooltip: { backgroundColor: 'black', textStyle: { color: 'orange', fontSize: 11 }, trigger: 'axis', axisPointer: { type: 'cross', label: { backgroundColor: '#6a7985' } } }, legend: { data: ['Email', 'Union Ads', 'Video Ads', 'Direct', 'Search Engine'] }, toolbox: { feature: { saveAsImage: {} } }, grid: { left: '3%', right: '4%', bottom: '3%', containLabel: true }, xAxis: [ { type: 'category', boundaryGap: false, data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'] } ], yAxis: [ { type: 'value' } ], series: [ { name: 'Email', type: 'line', stack: 'Total', areaStyle: {}, emphasis: { focus: 'series' }, data: [120, 132, 101, 134, 90, 230, 210] }, { name: 'Union Ads', type: 'line', stack: 'Total', areaStyle: {}, emphasis: { focus: 'series' }, data: [220, 182, 191, 234, 290, 330, 310] }, { name: 'Video Ads', type: 'line', stack: 'Total', areaStyle: {}, emphasis: { focus: 'series' }, data: [150, 232, 201, 154, 190, 330, 410] }, { name:
  'Direct', type: 'line', stack: 'Total', areaStyle: {}, emphasis: { focus: 'series' }, data: [320, 332, 301, 334, 390, 330, 320] }, { name: 'Search Engine', type: 'line', stack: 'Total', label: { show: true, position: 'top' }, areaStyle: {}, emphasis: { focus: 'series' }, data: [820, 932, 901, 934, 1290, 1330, 1320] } ] };
   
   ... copy that into the online 'examples' editor.
   
   If you move the mouse around and then stop, you will notice that quite often the text is blurred. Not always, but quite often.


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