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qml: fee histogram colours: extend colour palette to cover sub-1 s/b #10307

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merged 1 commit into from
Nov 19, 2025
+17 −1
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qml: fee histogram colours: extend colour palette to cover sub-1 s/b #10307

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18 changes: 17 additions & 1 deletion electrum/gui/qml/components/NetworkOverview.qml
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,22 @@ Pane {

property string title: qsTr("Network")

function _getFeerateColor(sat_per_vbyte) {
// To display a nice quickly graspable view of the mempool fee histogram, we map
// feerates to fixed colors. E.g. when the histogram is full of red, the user can
// instantly see fees are high.
// In the 1-600 s/b range, play with hue:
var hsv_hue = (2/3-(2/3*(
Math.log(
Math.min(600, Math.max(sat_per_vbyte, 1))
)
/Math.log(600))
))
// In the 0-1 s/b range, play with value:
var hsv_value = Math.min(sat_per_vbyte, 1)
return Qt.hsva(hsv_hue, 0.8, hsv_value, 1)
}

ColumnLayout {
anchors.fill: parent
spacing: 0
Expand Down Expand Up @@ -118,7 +134,7 @@ Pane {
Layout.preferredWidth: 300 * (modelData[1] / Network.feeHistogram.total)
Layout.fillWidth: true
height: parent.height
color: Qt.hsva(2/3-(2/3*(Math.log(Math.min(600, Math.max(modelData[0], 1)))/Math.log(600))), 0.8, 1, 1)
color: _getFeerateColor(modelData[0])
ToolTip.text: (qsTr("%1 around depth %2")
.arg(modelData[0] + " " + UI_UNIT_NAME.FEERATE_SAT_PER_VB)
.arg((modelData[2]/1000000).toFixed(2) + " " + UI_UNIT_NAME.MEMPOOL_MB)
Expand Down