# \[Solved\] Question about shadow blocks on the Canvas **URL:** \ **Category:** Questions about Thunkable X\ **Tags:** solved, tcanvas\ **Created:** [January 31, 2021, 3:48am UTC](https://community.thunkable.com/t/solved-question-about-shadow-blocks-on-the-canvas/1076265 "2021-01-31T03:48:22Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![hoch.academydhj7](https://avatars.discourse-cdn.com/v4/letter/h/6bbea6/32.png) [@hoch.academydhj7](https://community.thunkable.com/u/hoch.academydhj7)\ **Post date:** [January 31, 2021, 3:48am UTC](https://community.thunkable.com/t/solved-question-about-shadow-blocks-on-the-canvas/1076265/1 "2021-01-31T03:48:23Z")
Does someone know why is this happening?? I’m making a metal detector app using the canvas to make it graphical. in order to show the result from the magnetometer I use a canvas label. Everything was working fine but I suddenly noticed that nothing was updating and the canvas label was set to the default text. In the coding tab I noticed this, in the object selection dropdown in the " canvas set to" block is ghosted: ![blocks](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/f/6/f6c884ad2cabde0d1cc789d9b6cb8ce29cef00da.png) a few moments ago it was not like this. I do not know what to do! Please help me! ---
**Author:** ![tatiang](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/tatiang/32/55482_2.png) [@tatiang](https://community.thunkable.com/u/tatiang)\ **Post date:** [January 31, 2021, 4:11am UTC](https://community.thunkable.com/t/solved-question-about-shadow-blocks-on-the-canvas/1076265/2 "2021-01-31T04:11:02Z")
I don’t understand the problem. It seems like you cut off the part of the screenshot where the problem is? Are you saying you can’t click on “Canvas\_Label1”? ---
**Author:** ![hoch.academydhj7](https://avatars.discourse-cdn.com/v4/letter/h/6bbea6/32.png) [@hoch.academydhj7](https://community.thunkable.com/u/hoch.academydhj7)\ **Post date:** [January 31, 2021, 4:16am UTC](https://community.thunkable.com/t/solved-question-about-shadow-blocks-on-the-canvas/1076265/3 "2021-01-31T04:16:09Z")
No no. Do you see where it says canvas\_label1 and sprite1? That’s my issue it’s transparent it wasn’t like that before. it should be the same color as the rest of the block. ---
**Author:** ![tatiang](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/tatiang/32/55482_2.png) [@tatiang](https://community.thunkable.com/u/tatiang)\ **Post date:** [January 31, 2021, 4:32am UTC](https://community.thunkable.com/t/solved-question-about-shadow-blocks-on-the-canvas/1076265/4 "2021-01-31T04:32:01Z")
I don’t use the canvas much so you’re probably right that it changed but… even with it transparent, I can still change the value. ![Screen Shot 2021-01-30 at 8.31.41 PM](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/d/9/d943533f42b00dd667722563c4d37357d6064126.png) ---
**Author:** ![hoch.academydhj7](https://avatars.discourse-cdn.com/v4/letter/h/6bbea6/32.png) [@hoch.academydhj7](https://community.thunkable.com/u/hoch.academydhj7)\ **Post date:** [January 31, 2021, 4:43am UTC](https://community.thunkable.com/t/solved-question-about-shadow-blocks-on-the-canvas/1076265/7 "2021-01-31T04:43:06Z")
I can change the value but nothing happens? basically my app has stopped working. I get no values from the magnetometer just the default text. Wait i dunno what happened but i my now app works… it must of been Mandela effect… ---
**Author:** ![domhnallohanlon](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/domhnallohanlon/32/29554_2.png) [@domhnallohanlon](https://community.thunkable.com/u/domhnallohanlon)\ **Post date:** [February 1, 2021, 12:02pm UTC](https://community.thunkable.com/t/solved-question-about-shadow-blocks-on-the-canvas/1076265/8 "2021-02-01T12:02:36Z")