Add functionality to clear shader

[yiqunw700]

1. Add a clear all shader menu to clear all shader data from the figma design file
2. Add a clear shader button to clear the shader from the current selection in the plugin UI

Fixes: #1714

[github-actions]

Snapshot diff report vs base branch: main
Last updated: Fri Dec 13 19:16:01 PST 2024, Sha: 8f78105
No differences detected

[rylin8]

I was thinking that there would be a button next to "Apply Shader" to clear a single node of its shader, instead of, or in addition to, this method of clearing all shaders. A user might have a few shaders in a document and then accidentally apply a shader on the wrong node, in which case there's no way to just remove the shader from that node without clearing all shaders.

Secondly, I don't think there is a way right now to tell if a node has a shader set on it. I think that the shader UI should have some indication that the currently selected node has a shader saved in it, and a way to load that shader code into the text edit box.

[yiqunw700]

I was thinking that there would be a button next to "Apply Shader" to clear a single node of its shader, instead of, or in addition to, this method of clearing all shaders. A user might have a few shaders in a document and then accidentally apply a shader on the wrong node, in which case there's no way to just remove the shader from that node without clearing all shaders.

Secondly, I don't think there is a way right now to tell if a node has a shader set on it. I think that the shader UI should have some indication that the currently selected node has a shader saved in it, and a way to load that shader code into the text edit box.

Good point.
Added a clear shader button in the plugin ui which doesn't check if there is any shader code set though. There is a simple but not very reliable way is to check if the node uses a shader preview image.

Filed a ticket #1877 to track the load shader code in the plugin ui(including update the clear shader button state)