From 4b66b5623fcd42004af8878420664cd021b663d5 Mon Sep 17 00:00:00 2001
From: Paulo Eduardo Neves <paulo.neves@bndes.gov.br>
Date: Mon, 13 Dec 2021 17:54:20 -0300
Subject: [PATCH] Initial style for Altair charts

---
 altair.py | 132 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100644 altair.py

diff --git a/altair.py b/altair.py
new file mode 100644
index 0000000..524331d
--- /dev/null
+++ b/altair.py
@@ -0,0 +1,132 @@
+import altair as alt
+
+def charp_theme():
+    markColor = "#1696d2"
+    axisColor = "#000000"
+    backgroundColor = "#FFFFFF"
+    font = "Lato"
+    labelFont = "Lato"
+    sourceFont = "Lato"
+    gridColor = "#DEDDDD"
+    main_palette = ["#1696d2",
+                    "#d2d2d2",
+                    "#000000",
+                    "#fdbf11",
+                    "#ec008b",
+                    "#55b748",
+                    "#5c5859",
+                    "#db2b27",
+                   ]
+    sequential_palette = ["#cfe8f3",
+                          "#a2d4ec",
+                          "#73bfe2",
+                          "#46abdb",
+                          "#1696d2",
+                          "#12719e",
+                         ]
+    return {
+        "width": 685,
+        "height": 380,
+#        "autosize": "fit",
+        "config": {
+            "title": {
+                "anchor": "start",
+                "fontSize": 18,
+                "font": font,
+                "fontColor": "#000000"
+            },
+            "axisX": {
+               "domain": True,
+               "domainColor": axisColor,
+               "domainWidth": 1,
+               "grid": False,
+               "labelFontSize": 12,
+               "labelFont": labelFont,
+               "labelAngle": 0,
+               "tickColor": axisColor,
+               "tickSize": 5,
+               "titleFontSize": 12,
+               "titlePadding": 10,
+               "titleFont": font,
+               "title": "",
+           },
+           "axisY": {
+               "domain": False,
+               "grid": True,
+               "gridColor": gridColor,
+               "gridWidth": 1,
+               "labelFontSize": 12,
+               "labelFont": labelFont,
+               "labelPadding": 8,
+               "ticks": False,
+               "titleFontSize": 12,
+               "titlePadding": 10,
+               "titleFont": font,
+               "titleAngle": 0,
+               "titleY": -10,
+               "titleX": 18,
+           },
+           "background": backgroundColor,
+           "legend": {
+               "labelFontSize": 12,
+               "labelFont": labelFont,
+               "symbolSize": 100,
+               "symbolType": "square",
+               "titleFontSize": 12,
+               "titlePadding": 10,
+               "titleFont": font,
+               "title": "",
+               "orient": "top-left",
+               "offset": 0,
+           },
+           "view": {
+               "stroke": "transparent",
+           },
+           "range": {
+               "category": main_palette,
+               "diverging": sequential_palette,
+           },
+           "area": {
+               "fill": markColor,
+           },
+           "line": {
+               "color": markColor,
+               "stroke": markColor,
+               "strokewidth": 5,
+           },
+           "trail": {
+               "color": markColor,
+               "stroke": markColor,
+               "strokeWidth": 0,
+               "size": 1,
+           },
+           "path": {
+               "stroke": markColor,
+               "strokeWidth": 0.5,
+           },
+           "point": {
+               "filled": True,
+           },
+           "text": {
+               "font": sourceFont,
+               "color": markColor,
+               "fontSize": 11,
+               "align": "right",
+               "fontWeight": 400,
+               "size": 11,
+           },
+           "bar": {
+                "size": 40,
+                "binSpacing": 1,
+                "continuousBandSize": 30,
+                "discreteBandSize": 30,
+                "fill": markColor,
+                "stroke": False,
+            },
+       },
+    }
+
+
+alt.themes.register("charp", charp_theme)
+alt.themes.enable("charp")
+