OpenGL error: out of memory

[bung87]

nim c -r .\src\folx.nim on windows, nim version 2.1.1

after ac8fdaf

also there're a lot of small black box on interface.

C:\Users\mac\Documents\nim_works\folx\src\folx.nim(162) handleFolx
C:\Users\mac\Documents\nim_works\folx\src\side_explorer.nim(274) handleSideExplorer
C:\Users\mac\Documents\nim_works\folx\src\side_explorer.nim(274) handleSideExplorer
C:\Users\mac\Documents\nim_works\folx\src\side_explorer.nim(274) handleSideExplorer
C:\Users\mac\Documents\nim_works\folx\src\side_explorer.nim(274) handleSideExplorer
C:\Users\mac\Documents\nim_works\folx\src\side_explorer.nim(260) handleSideExplorer
C:\Users\mac\Documents\nim_works\folx\src\side_explorer.nim(172) handleItem
C:\Users\mac\Documents\nim_works\folx\src\render.nim(155) handleImage
C:\Users\mac\Documents\nim_works\folx\src\graphics\gl.nim(118) loadTexture
C:\Users\mac\.nimble\pkgs2\opengl-1.2.9-87ece9f3a9f99d17332b50885e15a4dcb18c51b5\opengl\private\errors.nim(44) glTexImage2D
C:\Users\mac\.nimble\pkgs2\opengl-1.2.9-87ece9f3a9f99d17332b50885e15a4dcb18c51b5\opengl\private\errors.nim(99) checkGLerror
Error: unhandled exception: OpenGL error: out of memory [GLerror]