Add color-adjustable SVG string support

modules/ui_symbols.py

@@ -40,3 +40,24 @@ sort_time_asc = '\uf0de'
 sort_time_dsc = '\uf0dd'
 style_apply = '↶'
 style_save = '↷'
+
+class SVGSymbol:
+    def __init__(self, svg: str):
+        self.svg = svg
+        self.before = ""
+        self.after = ""
+        self.supports_color = False
+        if "currentColor" in self.svg:
+            self.supports_color = True
+            self.before, self.after = self.svg.split("currentColor", maxsplit=1)
+
+    def color(self, color: str):
+        if self.supports_color:
+            return self.before + color + self.after
+        else:
+            return self.svg
+
+    def __str__(self):
+        return self.svg
+
+svg_bullet = SVGSymbol("<svg style='stroke:currentColor;fill:none;stroke-width:2;' viewBox='0 0 16 16'><circle cx='8' cy='8' r='7'/></svg>")