Add support for custom unselected arrow color

Author: relic-se

src/code.py

@@ -58,6 +58,7 @@
     "bg":     os.getenv("FRUIT_JAM_OS_BG",     0x222222),
     "fg":     os.getenv("FRUIT_JAM_OS_FG",     0xffffff),
     "accent": os.getenv("FRUIT_JAM_OS_ACCENT", 0x008800),
+    "arrow":  os.getenv("FRUIT_JAM_OS_ARROW",  -1),
 }
 
 request_display_config(720, 400)
@@ -358,6 +359,8 @@ def display_page(page_index):
 left_palette.make_transparent(0)
 right_bmp, right_palette = adafruit_imageload.load("launcher_assets/arrow_right.bmp")
 right_palette.make_transparent(0)
+if color_palette["arrow"] >= 0:
+    left_palette[2] = right_palette[2] = color_palette["arrow"]
 
 left_tg = AnchoredTileGrid(bitmap=left_bmp, pixel_shader=left_palette)
 left_tg.anchor_point = (0, 0.5)

src/settings.toml

@@ -2,3 +2,4 @@ CIRCUITPY_PYSTACK_SIZE=4000
 # FRUIT_JAM_OS_BG=0x222222
 # FRUIT_JAM_OS_FG=0xffffff
 # FRUIT_JAM_OS_ACCENT=0x008800
+# FRUIT_JAM_OS_ARROW=0x004abe