Icons are indiscernable from their backdrops when Material You is enabled with a monochrome palette.

[roke-julian-lockhart]

Prerequisites

• I am running the latest app version.

• I checked to make sure that issue has not already been filled.

What The Problem Is

When I set my com.android.wallpaper/com.android.customization.picker.CustomizationPickerActivity to a monochrome preset: ¹

↑	↓

This was regressed by issues/59#issuecomment-3476448642.

How To Reproduce

1. #!/system/bin/sh
   cmd activity start --user 0 -a android.intent.action.VIEW -n com.android.wallpaper/com.android.customization.picker.CustomizationPickerActivity -f 0 com.android.wallpaper

2. Select the monochrome option.

3. #!/system/bin/sh
   cmd activity start --user 0 -a android.intent.action.VIEW -n com.truemlgpro.wifiinfo/com.truemlgpro.wifiinfo.ui.activities.MainActivity -f 0 com.truemlgpro.wifiinfo

4. Navigate to “Tools”.

Expected Behaviour

They should be discernable:

↑	↓

My Environment

• Hardware

  1. Details

     #!/usr/bin/env pwsh
     $Object = [Ordered]@{}
     @(
     	'ro.product.brand'
     	'ro.build.product'
     ) | ForEach-Object {
     	$Value = (adb shell "getprop $_").Trim()
     	If ($Value) {
     		$Int64 = 0L
     		$Object[$_] =
     			If ([Long]::TryParse($Value, [Ref]$Int64)) {
     				$Int64
     			} Else {
     				$Value
     			}
     	}
     }
     $Object |
     	ConvertTo-Json -Compress |
     	yq -P

  2. ro.product.brand: Fairphone
     ro.build.product: FP5

• OS

  1. Details

     #!/usr/bin/env pwsh
     $Object = [Ordered]@{}
     @(
     	'ro.build.display.id'
     	'ro.build.fingerprint'
     	'ro.build.version.sdk'
     	'ro.build.version.sdk_full'
     ) | ForEach-Object {
     	$Value = (adb shell "getprop $_").Trim()
     	If ($Value) {
     		$Int64 = 0L
     		$Object[$_] =
     			If ([Long]::TryParse($Value, [Ref]$Int64)) {
     				$Int64
     			} Else {
     				$Value
     			}
     	}
     }
     $Object |
     	ConvertTo-Json -Compress |
     	yq -P

  2. ro.build.display.id: FP5.VT2E.C.059.20250908
     ro.build.version.sdk: 35

• The Application

  1. Details

     #!/usr/bin/env pwsh
     $Package = 'dev.imranr.obtainium'
     $DumpSys = adb shell "dumpsys package $Package"
     $Object = [Ordered]@{}
     @{
     	versionCode = 'versionCode=(\d+)'
     	versionName = 'versionName=([^\s]+)'
     }.GetEnumerator() | ForEach-Object {
     	$Match = [RegEx]::Match(
     		$DumpSys,
     		$_.Value,
     		[System.Text.RegularExpressions.RegexOptions]::Multiline
     	)
     	If ($Match.Success) {
     		$Value = $Match.Groups[1].Value
     		$Int64 = 0L
     		$Object[$_.Key] =
     			If ([Long]::TryParse($Value, [Ref]$Int64)) {
     				$Int64
     			} Else {
     				$Value
     			}
     	}
     }
     $Object.installer = (
     	adb shell 'pm list packages -i' |
     		Select-String "^package:$([RegEx]::Escape($Package)) " |
     		ForEach-Object {
     			$_ -replace '^.*installer='
     		}
     )
     $Object |
     	ConvertTo-JSON -Compress |
     	yq -P

  2. versionCode: 20000
     versionName: 2.0
     installer: com.truemlgpro.wifiinfo

Footnotes

1. Mahmud0808/ColorBlendr/issues/253#issue-3578325536 ↩

[TrueMLGPro]

Oh, I will look into that! Thank you!

[TrueMLGPro]

Light Theme

Dark Theme

AMOLED Theme

Sorry for taking so long, that's what I got so far!
Tried setting a monochrome palette using ColorBlendr and it looks like this. I might have to get rid of the gradient entirely or make it an option in settings because there are way too many theming setups that don't mix with it all that well

[roke-julian-lockhart]

@TrueMLGPro, yeah, gradients generally aren't a good idea.

Unfortunately, the monochrome theme appears to have (at least, temporarily) been removed from AOSP SDK 37 Canary. Although I'll definitely file an issue to have it reinstated, its removal might mean that, in the meantime, ColorBlendr is the sole way to achieve this on the latest AOSP version. I don't know whether that might cause differences. If ColorBlendr's approach works better, I'll use that.