diff --git a/src/graphics/shaders_study.c b/src/graphics/shaders_study.c
deleted file mode 100644
index e23e816..0000000
--- a/src/graphics/shaders_study.c
+++ /dev/null
@@ -1,159 +0,0 @@
-/*
- *      Gem-graph OpenGL experiments
- *
- *      Desc: GL functions
- *
- *  Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
- *  Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
- *  Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
- *
- *  This file is part of Gem-graph.
- *
- *  This program is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU Affero General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU Affero General Public License for more details.
- *
- *  You should have received a copy of the GNU Affero General Public License
- *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "../../include/base.h"
-#include "../../include/ui.h"
-#include "../../include/graphics.h"
-#include "../../include/shaders_study.h"
-#include "../../include/arrows.h"
-#include "../../include/grid.h"
-
-#define VERTEX_SHADER_FILE "src/shaders/shader.vert"
-#define FRAG_SHADER_FILE "src/shaders/shader.frag"
-
-
-//  Que fait l'instruction suivante (ligne 397 de graphics.c)
-//     dans  "bool graphics_init(const char *gl_area)" ?
-//
-//    if (!graphics_init_shaders(gl_area)) return false;
-//
-//  Et comment et pourquoi cette structure "gl_area_array" ?
-// (Dynamic array of ptrs to dynamically allocated gl_area_entry)
-//
-//      struct gl_area_entry **gl_area_array = NULL;
-
-
-
-/*
- * Initializes the shaders of a gl_area and link them to a program
- *
- * @param   gl_area, ptr to the gl_area widget
- *
- * @return  true if initialized
- */
-bool graphics_init_shaders(const void *gl_area)
-{
-    char *vertex_shader;
-    char *fragment_shader;
-    struct gl_area_entry *entry;
-    int status;
-    GLuint vertex, fragment;
-    GLuint program = 0;
-    GLuint m = 0;
-    GLuint v = 0;
-    GLuint p = 0;
-
-    entry = graphics_find_glarea_from_ptr(gl_area);
-
-    if (entry == NULL) {
-        errno = EFAULT;
-        perror("gl_area_array entry not found");
-        return false;
-    }
-
-    // Load vertex shader file
-    vertex_shader = read_file(VERTEX_SHADER_FILE);
-    if (vertex_shader == NULL)
-        return false;
-    vertex = create_shader(GL_VERTEX_SHADER, vertex_shader);
-
-//  !  WARNING  !  l'instruction suivante (ou un autre 'free') a pu provoquer un 'double free' (Abandon)
-    if(vertex == 0) {
-        entry->program = 0;
-        g_free(vertex_shader);
-        return false;
-    }
-
-    // Load fragment shader file
-    fragment_shader = read_file(FRAG_SHADER_FILE);
-    if (fragment_shader == NULL)
-        return false;
-    fragment = create_shader(GL_FRAGMENT_SHADER, fragment_shader);
-
-    if(fragment == 0) {
-        glDeleteShader(vertex);
-        entry->program = 0;
-        g_free(vertex_shader);
-        g_free(fragment_shader);
-        return false;
-    }
-
-    // Link shaders to program
-    program = glCreateProgram();
-    glAttachShader(program, vertex);
-    glAttachShader(program, fragment);
-
-    glLinkProgram(program);
-
-    glGetProgramiv(program, GL_LINK_STATUS, &status);
-
-    if(status == GL_FALSE) {
-        int log_len;
-        char *buffer;
-
-        glGetProgramiv(program, GL_INFO_LOG_LENGTH, &log_len);
-
-        buffer = g_malloc(log_len + 1);
-        assert(buffer);
-        glGetProgramInfoLog(program, log_len, NULL, buffer);
-
-        g_warning("Linking failure:\n%s", buffer);
-
-        g_free(buffer);
-
-        glDeleteProgram(program);
-        program = 0;
-
-        glDeleteShader(vertex);
-        glDeleteShader(fragment);
-
-        g_free(vertex_shader);
-        g_free(fragment_shader);
-
-        return false;
-    }
-
-    /* Get the location of the "mvp" uniform */
-    m = glGetUniformLocation(program, "model_matrix");
-    v = glGetUniformLocation(program, "view_matrix");
-    p = glGetUniformLocation(program, "projection_matrix");
-
-    glDetachShader(program, vertex);
-    glDetachShader(program, fragment);
-
-    glDeleteShader(vertex);
-    glDeleteShader(fragment);
-
-    entry->program = program;
-    entry->m = m;
-    entry->v = v;
-    entry->p = p;
-
-    g_free(vertex_shader);
-    g_free(fragment_shader);
-
-    return true;
-}
-