From: Michael Tremer <michael.tremer@ipfire.org>
Date: Thu, 30 Oct 2025 18:25:44 +0000 (+0000)
Subject: graphs: Apply some more styling
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bb99f8284dd16f3615d0eb2394334074724c7c51;p=telemetry.git

graphs: Apply some more styling

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/src/daemon/colors.h b/src/daemon/colors.h
index c4898bd..a04f8c3 100644
--- a/src/daemon/colors.h
+++ b/src/daemon/colors.h
@@ -38,6 +38,18 @@
 #define COLOR_PINK				"#e91e63"
 #define COLOR_DEEP_PURPLE		"#673ab7"
 
+// Make the background and canvas transparent
+#define COLOR_BACKGROUND		COLOR_WITH_ALPHA(COLOR_WHITE, COLOR_OPACITY_100P)
+#define COLOR_CANVAS			COLOR_WITH_ALPHA(COLOR_WHITE, COLOR_OPACITY_100P)
+
+// Use a dark grey for the font
+#define COLOR_FONT				"#333333"
+
+// Use a light grey for the axis, frame and grid
+#define COLOR_AXIS				"#aaaaaa"
+#define COLOR_FRAME				"#dddddd"
+#define COLOR_GRID				"#eeeeee"
+
 /*
 	Define some colours with a special meaning...
 */
diff --git a/src/daemon/graph.c b/src/daemon/graph.c
index 3f1951b..b1a8a15 100644
--- a/src/daemon/graph.c
+++ b/src/daemon/graph.c
@@ -53,7 +53,22 @@ const char* DEFAULT_RENDER_ARGS[] = {
 	"--",
 
 	// Change the background color
-	"--color=BACK" COLOR_WITH_ALPHA(COLOR_WHITE, COLOR_OPACITY_100P),
+	"--color=BACK" COLOR_BACKGROUND,
+
+	// Change the color of the canvas
+	"--color=CANVAS" COLOR_CANVAS,
+
+	// Set the font color
+	"--color=FONT" COLOR_FONT,
+
+	// Set the axis color
+	"--color=AXIS" COLOR_AXIS,
+
+	// Set the color of the frame
+	"--color=FRAME" COLOR_FRAME,
+
+	// Set the color of the grid
+	"--color=GRID" COLOR_GRID,
 
 	// Disable the border around the image
 	"--border=0",