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[SPARK-31565][WEBUI] Unify the font color of label among all DAG-viz #28352

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[SPARK-31565][WEBUI] Unify the font color of label among all DAG-viz #28352

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1 change: 1 addition & 0 deletions core/src/main/resources/org/apache/spark/ui/static/spark-dag-viz.css
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@
#dag-viz-graph .label {
font-weight: normal;
text-shadow: none;
color: #333;
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What does this change?

According to the PR description, For RDDs, the color is #212529 which is specified by bootstrap.min.js.

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Never mind. I validate this overrides correctly via Web Inspector and UI.

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@sarutak sarutak Apr 27, 2020 •
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Actually, the library DAG-viz uses (dagre-d3) has some mode.
One is text which is the default mode and another is html mode.
With html mode, label is represented as HTML, while with text mode, label is represented as SVG.
For each node in DAG-viz for RDDs, outer label is SVG and inner one is HTML.
The color of font for SVG is specified by fill while color for HTML so we need this setting.
stage-graph-fixed

While I wrote the explanation above, I noticed the font color of outer node for query plans is not specified. So, the default font color of SVG seems to be applied (Can you recognize the color of WholeStageCodegen (1) is a little bit darker than SerializeFromObject ?).
plan-graph-fixed

I'll create a followup PR.

}

#dag-viz-graph svg path {
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2 changes: 1 addition & 1 deletion sql/core/src/main/resources/org/apache/spark/sql/execution/ui/static/spark-sql-viz.css
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Expand Up @@ -19,7 +19,7 @@
font-size: 0.85rem;
font-weight: normal;
text-shadow: none;
color: black;
color: #333;
}

#plan-viz-graph svg g.cluster rect {
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